diff --git a/yarn.lock b/yarn.lock
index 3a70d4a..447121a 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -348,6 +348,20 @@
   dependencies:
     "@babel/types" "^7.3.0"
 
+"@types/codemirror@0.0.109":
+  version "0.0.109"
+  resolved "https://registry.yarnpkg.com/@types/codemirror/-/codemirror-0.0.109.tgz#89d575ff1c7b462c4c3b8654f8bb38e5622e9036"
+  integrity sha512-cSdiHeeLjvGn649lRTNeYrVCDOgDrtP+bDDSFDd1TF+i0jKGPDRozno2NOJ9lTniso+taiv4kiVS8dgM8Jm5lg==
+  dependencies:
+    "@types/tern" "*"
+
+"@types/codemirror@^0.0.76":
+  version "0.0.76"
+  resolved "https://registry.yarnpkg.com/@types/codemirror/-/codemirror-0.0.76.tgz#c52719878056a216bc05889b46a41d4eb1434423"
+  integrity sha512-k/hpUb+Ebyn9z63qM8IbsRiW0eYHZ+pi/1e2reGzBKAZJzkjWmNTXXqLLiNv5d9ekyxkajxRBr5Hu2WZq/nokw==
+  dependencies:
+    "@types/tern" "*"
+
 "@types/d3-array@*":
   version "2.0.0"
   resolved "https://registry.npmjs.org/@types/d3-array/-/d3-array-2.0.0.tgz#a0d63a296a2d8435a9ec59393dcac746c6174a96"
@@ -569,6 +583,11 @@
     "@types/d3-voronoi" "*"
     "@types/d3-zoom" "*"
 
+"@types/estree@*":
+  version "0.0.50"
+  resolved "https://registry.yarnpkg.com/@types/estree/-/estree-0.0.50.tgz#1e0caa9364d3fccd2931c3ed96fdbeaa5d4cca83"
+  integrity sha512-C6N5s2ZFtuZRj54k2/zyRhNDjJwwcViAM3Nbm8zjBpbqAdZ00mr0CFxvSKeO8Y/e03WVFLpQMdHYVfUd6SB+Hw==
+
 "@types/estree@0.0.39":
   version "0.0.39"
   resolved "https://registry.npmjs.org/@types/estree/-/estree-0.0.39.tgz#e177e699ee1b8c22d23174caaa7422644389509f"
@@ -634,6 +653,11 @@
     "@types/tough-cookie" "*"
     parse5 "^4.0.0"
 
+"@types/marked@^2.0.2":
+  version "2.0.5"
+  resolved "https://registry.yarnpkg.com/@types/marked/-/marked-2.0.5.tgz#453e27f1e97199d45bb25297b0dd2b9bbc1e05ea"
+  integrity sha512-shRZ7XnYFD/8n8zSjKvFdto1QNSf4tONZIlNEZGrJe8GsOE8DL/hG1Hbl8gZlfLnjS7+f5tZGIaTgfpyW38h4w==
+
 "@types/minimatch@*":
   version "3.0.3"
   resolved "https://registry.npmjs.org/@types/minimatch/-/minimatch-3.0.3.tgz#3dca0e3f33b200fc7d1139c0cd96c1268cadfd9d"
@@ -656,11 +680,6 @@
   dependencies:
     "@types/node" "*"
 
-"@types/simplemde@^1.11.7":
-  version "1.11.7"
-  resolved "https://registry.npmjs.org/@types/simplemde/-/simplemde-1.11.7.tgz#c8bd9f54ff46db7f311a989004eb5815acedf429"
-  integrity sha512-b3yirBar1gqb9clgJJKpx+Or3txkOOkm5sffhRKaBUfh7+1D2Aimx2RKXGS1LK9S5KyNmug3lwpGJtaID9cOnA==
-
 "@types/sortablejs@^1.3.32":
   version "1.7.2"
   resolved "https://registry.npmjs.org/@types/sortablejs/-/sortablejs-1.7.2.tgz#1e75a84ff3c60e6d44c43641f717a131b785982c"
@@ -671,6 +690,13 @@
   resolved "https://registry.npmjs.org/@types/stack-utils/-/stack-utils-1.0.1.tgz#0a851d3bd96498fa25c33ab7278ed3bd65f06c3e"
   integrity sha512-l42BggppR6zLmpfU6fq9HEa2oGPEI8yrSPL3GITjfRInppYFahObbIQOQK3UGxEnyQpltZLaPe75046NOZQikw==
 
+"@types/tern@*":
+  version "0.23.4"
+  resolved "https://registry.yarnpkg.com/@types/tern/-/tern-0.23.4.tgz#03926eb13dbeaf3ae0d390caf706b2643a0127fb"
+  integrity sha512-JAUw1iXGO1qaWwEOzxTKJZ/5JxVeON9kvGZ/osgZaJImBnyjyn0cjovPsf6FNLmyGY8Vw9DoXZCMlfMkMwHRWg==
+  dependencies:
+    "@types/estree" "*"
+
 "@types/tough-cookie@*":
   version "2.3.5"
   resolved "https://registry.npmjs.org/@types/tough-cookie/-/tough-cookie-2.3.5.tgz#9da44ed75571999b65c37b60c9b2b88db54c585d"
@@ -1104,10 +1130,10 @@ chalk@^2.0.0, chalk@^2.0.1, chalk@^2.3.0, chalk@^2.4.1, chalk@^2.4.2:
     escape-string-regexp "^1.0.5"
     supports-color "^5.3.0"
 
-chownr@^1.1.1:
-  version "1.1.2"
-  resolved "https://registry.npmjs.org/chownr/-/chownr-1.1.2.tgz#a18f1e0b269c8a6a5d3c86eb298beb14c3dd7bf6"
-  integrity sha512-GkfeAQh+QNy3wquu9oIZr6SS5x7wGdSgNQvD10X3r+AZr1Oys22HW8kAmDMvNg2+Dm0TeGaEuO8gFwdBXxwO8A==
+chownr@^1.1.4:
+  version "1.1.4"
+  resolved "https://registry.yarnpkg.com/chownr/-/chownr-1.1.4.tgz#6fc9d7b42d32a583596337666e7d08084da2cc6b"
+  integrity sha512-jJ0bqzaylmJtVnNgzTeSOs8DPavpbYgEr/b0YL8/2GO3xJEhInFmhKMUnEJQjZumK7KXGFhUy89PrsJWlakBVg==
 
 ci-info@^2.0.0:
   version "2.0.0"
@@ -1158,17 +1184,17 @@ code-point-at@^1.0.0:
   resolved "https://registry.npmjs.org/code-point-at/-/code-point-at-1.1.0.tgz#0d070b4d043a5bea33a2f1a40e2edb3d9a4ccf77"
   integrity sha1-DQcLTQQ6W+ozovGkDi7bPZpMz3c=
 
-codemirror-spell-checker@*:
+codemirror-spell-checker@1.1.2:
   version "1.1.2"
-  resolved "https://registry.npmjs.org/codemirror-spell-checker/-/codemirror-spell-checker-1.1.2.tgz#1c660f9089483ccb5113b9ba9ca19c3f4993371e"
+  resolved "https://registry.yarnpkg.com/codemirror-spell-checker/-/codemirror-spell-checker-1.1.2.tgz#1c660f9089483ccb5113b9ba9ca19c3f4993371e"
   integrity sha1-HGYPkIlIPMtRE7m6nKGcP0mTNx4=
   dependencies:
     typo-js "*"
 
-codemirror@*:
-  version "5.48.4"
-  resolved "https://registry.npmjs.org/codemirror/-/codemirror-5.48.4.tgz#4210fbe92be79a88f0eea348fab3ae78da85ce47"
-  integrity sha512-pUhZXDQ6qXSpWdwlgAwHEkd4imA0kf83hINmUEzJpmG80T/XLtDDEzZo8f6PQLuRCcUQhmzqqIo3ZPTRaWByRA==
+codemirror@^5.61.0:
+  version "5.62.3"
+  resolved "https://registry.yarnpkg.com/codemirror/-/codemirror-5.62.3.tgz#5cfdee6931c8b2d1b39ae773aaaaec2cc6b5558e"
+  integrity sha512-zZAyOfN8TU67ngqrxhOgtkSAGV9jSpN1snbl8elPtnh9Z5A11daR405+dhLzLnuXrwX0WCShWlybxPN3QC/9Pg==
 
 collection-visit@^1.0.0:
   version "1.0.0"
@@ -1687,6 +1713,17 @@ domexception@^1.0.1:
   dependencies:
     webidl-conversions "^4.0.2"
 
+easymde@^2.8.0:
+  version "2.15.0"
+  resolved "https://registry.yarnpkg.com/easymde/-/easymde-2.15.0.tgz#73667c4879d8687b07651d6259ee652bba5d0b00"
+  integrity sha512-9jMRIVvKt1d0UjRN45yotUYECAM4xvw0TTAQw8sYDONP++keWJVnd8Xrn+V+vQEN/v9/X0SWEoo1rFSgCooGpw==
+  dependencies:
+    "@types/codemirror" "0.0.109"
+    "@types/marked" "^2.0.2"
+    codemirror "^5.61.0"
+    codemirror-spell-checker "1.1.2"
+    marked "^2.0.3"
+
 ecc-jsbn@~0.1.1:
   version "0.1.2"
   resolved "https://registry.npmjs.org/ecc-jsbn/-/ecc-jsbn-0.1.2.tgz#3a83a904e54353287874c564b7549386849a98c9"
@@ -2043,12 +2080,12 @@ fs-extra@8.1.0:
     jsonfile "^4.0.0"
     universalify "^0.1.0"
 
-fs-minipass@^1.2.5:
-  version "1.2.6"
-  resolved "https://registry.npmjs.org/fs-minipass/-/fs-minipass-1.2.6.tgz#2c5cc30ded81282bfe8a0d7c7c1853ddeb102c07"
-  integrity sha512-crhvyXcMejjv3Z5d2Fa9sf5xLYVCF5O1c71QxbVnbLsmYMBEvDAftewesN/HhY03YRoA7zOMxjNGrF5svGaaeQ==
+fs-minipass@^1.2.7:
+  version "1.2.7"
+  resolved "https://registry.yarnpkg.com/fs-minipass/-/fs-minipass-1.2.7.tgz#ccff8570841e7fe4265693da88936c55aed7f7c7"
+  integrity sha512-GWSSJGFy4e9GUeCcbIkED+bgAoFyj7XF1mV8rma3QW4NIqX9Kyx79N/PF61H5udOV3aY1IaMLs6pGbH71nlCTA==
   dependencies:
-    minipass "^2.2.1"
+    minipass "^2.6.0"
 
 fs.realpath@^1.0.0:
   version "1.0.0"
@@ -3401,10 +3438,10 @@ map-visit@^1.0.0:
   dependencies:
     object-visit "^1.0.0"
 
-marked@*:
-  version "0.7.0"
-  resolved "https://registry.npmjs.org/marked/-/marked-0.7.0.tgz#b64201f051d271b1edc10a04d1ae9b74bb8e5c0e"
-  integrity sha512-c+yYdCZJQrsRjTPhUx7VKkApw9bwDkNbHUKo1ovgcfDjb2kc8rLuRbIFyXL5WOEUwzSSKo3IXpph2K6DqB/KZg==
+marked@^2.0.3:
+  version "2.1.3"
+  resolved "https://registry.yarnpkg.com/marked/-/marked-2.1.3.tgz#bd017cef6431724fd4b27e0657f5ceb14bff3753"
+  integrity sha512-/Q+7MGzaETqifOMWYEA7HVMaZb4XbcRfaOzcSsHZEith83KGlvaSG33u0SKu89Mj5h+T8V2hM+8O45Qc5XTgwA==
 
 memory-fs@^0.4.0:
   version "0.4.1"
@@ -3480,35 +3517,35 @@ minimatch@^3.0.4:
   dependencies:
     brace-expansion "^1.1.7"
 
-minimist@0.0.8:
-  version "0.0.8"
-  resolved "https://registry.npmjs.org/minimist/-/minimist-0.0.8.tgz#857fcabfc3397d2625b8228262e86aa7a011b05d"
-  integrity sha1-hX/Kv8M5fSYluCKCYuhqp6ARsF0=
-
 minimist@^1.1.1, minimist@^1.2.0:
   version "1.2.0"
   resolved "https://registry.npmjs.org/minimist/-/minimist-1.2.0.tgz#a35008b20f41383eec1fb914f4cd5df79a264284"
   integrity sha1-o1AIsg9BOD7sH7kU9M1d95omQoQ=
 
+minimist@^1.2.5:
+  version "1.2.5"
+  resolved "https://registry.yarnpkg.com/minimist/-/minimist-1.2.5.tgz#67d66014b66a6a8aaa0c083c5fd58df4e4e97602"
+  integrity sha512-FM9nNUYrRBAELZQT3xeZQ7fmMOBg6nWNmJKTcgsJeaLstP/UODVpGsr5OhXhhXg6f+qtJ8uiZ+PUxkDWcgIXLw==
+
 minimist@~0.0.1:
   version "0.0.10"
   resolved "https://registry.npmjs.org/minimist/-/minimist-0.0.10.tgz#de3f98543dbf96082be48ad1a0c7cda836301dcf"
   integrity sha1-3j+YVD2/lggr5IrRoMfNqDYwHc8=
 
-minipass@^2.2.1, minipass@^2.3.5:
-  version "2.3.5"
-  resolved "https://registry.npmjs.org/minipass/-/minipass-2.3.5.tgz#cacebe492022497f656b0f0f51e2682a9ed2d848"
-  integrity sha512-Gi1W4k059gyRbyVUZQ4mEqLm0YIUiGYfvxhF6SIlk3ui1WVxMTGfGdQ2SInh3PDrRTVvPKgULkpJtT4RH10+VA==
+minipass@^2.6.0, minipass@^2.9.0:
+  version "2.9.0"
+  resolved "https://registry.yarnpkg.com/minipass/-/minipass-2.9.0.tgz#e713762e7d3e32fed803115cf93e04bca9fcc9a6"
+  integrity sha512-wxfUjg9WebH+CUDX/CdbRlh5SmfZiy/hpkxaRI16Y9W56Pa75sWgd/rvFilSgrauD9NyFymP/+JFV3KwzIsJeg==
   dependencies:
     safe-buffer "^5.1.2"
     yallist "^3.0.0"
 
-minizlib@^1.2.1:
-  version "1.2.1"
-  resolved "https://registry.npmjs.org/minizlib/-/minizlib-1.2.1.tgz#dd27ea6136243c7c880684e8672bb3a45fd9b614"
-  integrity sha512-7+4oTUOWKg7AuL3vloEWekXY2/D20cevzsrNT2kGWm+39J9hGTCBv8VI5Pm5lXZ/o3/mdR4f8rflAPhnQb8mPA==
+minizlib@^1.3.3:
+  version "1.3.3"
+  resolved "https://registry.yarnpkg.com/minizlib/-/minizlib-1.3.3.tgz#2290de96818a34c29551c8a8d301216bd65a861d"
+  integrity sha512-6ZYMOEnmVsdCeTJVE0W9ZD+pVnE8h9Hma/iOwwRDsdQoePpoX56/8B6z3P9VNwppJuBKNRuFDRNRqRWexT9G9Q==
   dependencies:
-    minipass "^2.2.1"
+    minipass "^2.9.0"
 
 mixin-deep@^1.2.0:
   version "1.3.2"
@@ -3518,12 +3555,12 @@ mixin-deep@^1.2.0:
     for-in "^1.0.2"
     is-extendable "^1.0.1"
 
-mkdirp@0.x, mkdirp@^0.5.0, mkdirp@^0.5.1:
-  version "0.5.1"
-  resolved "https://registry.npmjs.org/mkdirp/-/mkdirp-0.5.1.tgz#30057438eac6cf7f8c4767f38648d6697d75c903"
-  integrity sha1-MAV0OOrGz3+MR2fzhkjWaX11yQM=
+mkdirp@0.x, mkdirp@^0.5.1, mkdirp@^0.5.5:
+  version "0.5.5"
+  resolved "https://registry.yarnpkg.com/mkdirp/-/mkdirp-0.5.5.tgz#d91cefd62d1436ca0f41620e251288d420099def"
+  integrity sha512-NKmAlESf6jMGym1++R0Ra7wvhV+wFW63FaSOFPwRahvea0gMUcGUhVeAg/0BC0wiv9ih5NYPB1Wn1UEI1/L+xQ==
   dependencies:
-    minimist "0.0.8"
+    minimist "^1.2.5"
 
 ms@2.0.0:
   version "2.0.0"
@@ -4377,10 +4414,10 @@ rxjs@^6.3.3:
   dependencies:
     tslib "^1.9.0"
 
-safe-buffer@^5.0.1, safe-buffer@^5.1.0, safe-buffer@^5.1.2:
-  version "5.2.0"
-  resolved "https://registry.npmjs.org/safe-buffer/-/safe-buffer-5.2.0.tgz#b74daec49b1148f88c64b68d49b1e815c1f2f519"
-  integrity sha512-fZEwUGbVl7kouZs1jCdMLdt95hdIv0ZeHg6L7qPeciMZhZ+/gdesW4wgTARkrFWEpspjEATAzUGPG8N2jJiwbg==
+safe-buffer@^5.0.1, safe-buffer@^5.1.0, safe-buffer@^5.1.2, safe-buffer@^5.2.1:
+  version "5.2.1"
+  resolved "https://registry.yarnpkg.com/safe-buffer/-/safe-buffer-5.2.1.tgz#1eaf9fa9bdb1fdd4ec75f58f9cdb4e6b7827eec6"
+  integrity sha512-rp3So07KcdmmKbGvgaNxQSJr7bGVSVk5S9Eq1F+ppbRo70+YeaDxkw5Dd8NPN+GD6bjnYm2VuPuCXmpuYvmCXQ==
 
 safe-buffer@~5.1.0, safe-buffer@~5.1.1:
   version "5.1.2"
@@ -4490,15 +4527,6 @@ simple-websocket@^5.0.0:
     safe-buffer "^5.0.1"
     ws "^3.3.1"
 
-simplemde@^1.11.2:
-  version "1.11.2"
-  resolved "https://registry.npmjs.org/simplemde/-/simplemde-1.11.2.tgz#a23a35d978d2c40ef07dec008c92f070d8e080e3"
-  integrity sha1-ojo12XjSxA7wfewAjJLwcNjggOM=
-  dependencies:
-    codemirror "*"
-    codemirror-spell-checker "*"
-    marked "*"
-
 sisteransi@^1.0.3:
   version "1.0.3"
   resolved "https://registry.npmjs.org/sisteransi/-/sisteransi-1.0.3.tgz#98168d62b79e3a5e758e27ae63c4a053d748f4eb"
@@ -4790,17 +4818,17 @@ tapable@^1.0.0:
   integrity sha512-4WK/bYZmj8xLr+HUCODHGF1ZFzsYffasLUgEiMBY4fgtltdO6B4WJtlSbPaDTLpYTcGVwM2qLnFTICEcNxs3kA==
 
 tar@^4:
-  version "4.4.10"
-  resolved "https://registry.npmjs.org/tar/-/tar-4.4.10.tgz#946b2810b9a5e0b26140cf78bea6b0b0d689eba1"
-  integrity sha512-g2SVs5QIxvo6OLp0GudTqEf05maawKUxXru104iaayWA09551tFCTI8f1Asb4lPfkBr91k07iL4c11XO3/b0tA==
-  dependencies:
-    chownr "^1.1.1"
-    fs-minipass "^1.2.5"
-    minipass "^2.3.5"
-    minizlib "^1.2.1"
-    mkdirp "^0.5.0"
-    safe-buffer "^5.1.2"
-    yallist "^3.0.3"
+  version "4.4.19"
+  resolved "https://registry.yarnpkg.com/tar/-/tar-4.4.19.tgz#2e4d7263df26f2b914dee10c825ab132123742f3"
+  integrity sha512-a20gEsvHnWe0ygBY8JbxoM4w3SJdhc7ZAuxkLqh+nvNQN2IOt0B5lLgM490X5Hl8FF0dl0tOf2ewFYAlIFgzVA==
+  dependencies:
+    chownr "^1.1.4"
+    fs-minipass "^1.2.7"
+    minipass "^2.9.0"
+    minizlib "^1.3.3"
+    mkdirp "^0.5.5"
+    safe-buffer "^5.2.1"
+    yallist "^3.1.1"
 
 test-exclude@^5.2.3:
   version "5.2.3"
@@ -5285,10 +5313,10 @@ y18n@^4.0.0:
   resolved "https://registry.npmjs.org/y18n/-/y18n-4.0.0.tgz#95ef94f85ecc81d007c264e190a120f0a3c8566b"
   integrity sha512-r9S/ZyXu/Xu9q1tYlpsLIsa3EeLXXk0VwlxqTcFRfg9EhMW+17kbt9G0NrgCmhGb5vT2hyhJZLfDGx+7+5Uj/w==
 
-yallist@^3.0.0, yallist@^3.0.3:
-  version "3.0.3"
-  resolved "https://registry.npmjs.org/yallist/-/yallist-3.0.3.tgz#b4b049e314be545e3ce802236d6cd22cd91c3de9"
-  integrity sha512-S+Zk8DEWE6oKpV+vI3qWkaK+jSbIK86pCwe2IF/xwIpQ8jEuxpw9NyaGjmp9+BoJv5FV2piqCDcoCtStppiq2A==
+yallist@^3.0.0, yallist@^3.1.1:
+  version "3.1.1"
+  resolved "https://registry.yarnpkg.com/yallist/-/yallist-3.1.1.tgz#dbb7daf9bfd8bac9ab45ebf602b8cbad0d5d08fd"
+  integrity sha512-a4UGQaWPH59mOXUYnAG2ewncQS4i4F43Tv3JoAM+s2VDAmS9NsK8GpDMLrCHPksFT7h3K6TOoUNn2pb7RoXx4g==
 
 yargs-parser@10.x:
   version "10.1.0"