diff --git a/.mdl.rb b/.mdl.rb
new file mode 100644
index 0000000..aa3bb3c
--- /dev/null
+++ b/.mdl.rb
@@ -0,0 +1,13 @@
+# Enable all rules by default
+all
+
+exclude_rule 'MD024'
+exclude_rule 'MD026'
+
+rule 'MD013', :line_length => 160
+
+rule 'MD007', :indent => 2
+
+rule 'MD009', :br_spaces => 2
+
+rule 'MD010', :code_blocks => true
diff --git a/.mdlrc b/.mdlrc
new file mode 100644
index 0000000..b2dcc45
--- /dev/null
+++ b/.mdlrc
@@ -0,0 +1 @@
+style '.mdl.rb'
\ No newline at end of file
diff --git a/README.md b/README.md
index 0c1bef3..636b23b 100644
--- a/README.md
+++ b/README.md
@@ -86,7 +86,7 @@ rm ./ec-priv-key.pem
 
 Extract public key from private:
 
-```
+```shell
 openssl ec -in ./ec-encr-priv-key.pem -pubout > ec-pub-key.pem
 ```