diff --git a/yarn.lock b/yarn.lock
index 3a70d4a..4f44669 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -348,6 +348,13 @@
   dependencies:
     "@babel/types" "^7.3.0"
 
+"@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 +576,11 @@
     "@types/d3-voronoi" "*"
     "@types/d3-zoom" "*"
 
+"@types/estree@*":
+  version "0.0.45"
+  resolved "https://registry.yarnpkg.com/@types/estree/-/estree-0.0.45.tgz#e9387572998e5ecdac221950dab3e8c3b16af884"
+  integrity sha512-jnqIUKDUqJbDIUxm0Uj7bnlMnRm1T/eZ9N+AVMqhPgzrba2GhGG5o/jCTwmdPK709nEZsGoMzXEDUjcXHa3W0g==
+
 "@types/estree@0.0.39":
   version "0.0.39"
   resolved "https://registry.npmjs.org/@types/estree/-/estree-0.0.39.tgz#e177e699ee1b8c22d23174caaa7422644389509f"
@@ -656,11 +668,6 @@
   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 +678,13 @@
   resolved "https://registry.npmjs.org/@types/stack-utils/-/stack-utils-1.0.1.tgz#0a851d3bd96498fa25c33ab7278ed3bd65f06c3e"
   integrity sha512-l42BggppR6zLmpfU6fq9HEa2oGPEI8yrSPL3GITjfRInppYFahObbIQOQK3UGxEnyQpltZLaPe75046NOZQikw==
 
+"@types/tern@*":
+  version "0.23.3"
+  resolved "https://registry.yarnpkg.com/@types/tern/-/tern-0.23.3.tgz#4b54538f04a88c9ff79de1f6f94f575a7f339460"
+  integrity sha512-imDtS4TAoTcXk0g7u4kkWqedB3E4qpjXzCpD2LU5M5NAXHzCDsypyvXSaG7mM8DKYkCRa7tFp4tS/lp/Wo7Q3w==
+  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"
@@ -1158,17 +1172,17 @@ 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@^5.55.0:
+  version "5.55.0"
+  resolved "https://registry.yarnpkg.com/codemirror/-/codemirror-5.55.0.tgz#23731f641288f202a6858fdc878f3149e0e04363"
+  integrity sha512-TumikSANlwiGkdF/Blnu/rqovZ0Y3Jh8yy9TqrPbSM0xxSucq3RgnpVDQ+mD9q6JERJEIT2FMuF/fBGfkhIR/g==
 
 collection-visit@^1.0.0:
   version "1.0.0"
@@ -1687,6 +1701,15 @@ domexception@^1.0.1:
   dependencies:
     webidl-conversions "^4.0.2"
 
+easymde@^2.8.0:
+  version "2.11.0"
+  resolved "https://registry.yarnpkg.com/easymde/-/easymde-2.11.0.tgz#544d27c6f265c8be15b4256957731c6de3a6a5b9"
+  integrity sha512-d7HtwPXqqARY6KMCMe0EWUfNvoMh/VzHystKZE35mkL7x4z6ZsVBIPyRviGxYyix2qkC3zFGh1A0uo9hLpNuBg==
+  dependencies:
+    codemirror "^5.55.0"
+    codemirror-spell-checker "1.1.2"
+    marked "^1.1.1"
+
 ecc-jsbn@~0.1.1:
   version "0.1.2"
   resolved "https://registry.npmjs.org/ecc-jsbn/-/ecc-jsbn-0.1.2.tgz#3a83a904e54353287874c564b7549386849a98c9"
@@ -3328,9 +3351,9 @@ lodash.sortby@^4.7.0:
   integrity sha1-7dFMgk4sycHgsKG0K7UhBRakJDg=
 
 lodash@^4.17.11, lodash@^4.17.13:
-  version "4.17.15"
-  resolved "https://registry.npmjs.org/lodash/-/lodash-4.17.15.tgz#b447f6670a0455bbfeedd11392eff330ea097548"
-  integrity sha512-8xOcRHvCjnocdS5cpwXQXVzmmh5e5+saE2QGoeQmbKmRS6J3VQppPOIt0MnmE+4xlZoumy0GPG0D0MVIQbNA1A==
+  version "4.17.19"
+  resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.17.19.tgz#e48ddedbe30b3321783c5b4301fbd353bc1e4a4b"
+  integrity sha512-JNvd8XER9GQX0v2qJgsaN/mzFCNA5BRe/j8JN9d+tWyGLSodKQHKFicdwNYzWwI3wjRnaKPsGj1XkBjx/F96DQ==
 
 log-symbols@^1.0.2:
   version "1.0.2"
@@ -3401,10 +3424,10 @@ 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@^1.1.1:
+  version "1.1.1"
+  resolved "https://registry.yarnpkg.com/marked/-/marked-1.1.1.tgz#e5d61b69842210d5df57b05856e0c91572703e6a"
+  integrity sha512-mJzT8D2yPxoPh7h0UXkB+dBj4FykPJ2OIfxAWeIHrvoHDkFxukV/29QxoFQoPM6RLEwhIFdJpmKBlqVM3s2ZIw==
 
 memory-fs@^0.4.0:
   version "0.4.1"
@@ -4490,15 +4513,6 @@ 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"