Add custom plugin

code.md

@@ -61,27 +61,9 @@ class Person extends Thing
 with Person!
   .name = "MoonScript"
   \say_name!
-
-export my_func
-x = 2323
-
-collection =
-  height: 32434
-  hats: {"tophat", "bball", "bowler"}
-
-my_func = (a) -> x + a
-
-print my_func 100
-
-import concat, insert from table
-
-double_args = (...) ->
-  [x * 2 for x in *{...}]
-
-tuples = [{k, v} for k,v in ipairs my_table]
 ```
 
-## `CoffeeScript`
+## `coffeescript`
 
 ```coffeescript
 author = "Wittgenstein"
@@ -90,13 +72,13 @@ quote  = "A picture is a fact. -- #{ author }"
 sentence = "#{ 22 / 7 } is a decent approximation of π"
 ```
 
-## `JavaScript`
+## `javascript`
 
 ```javascript
 let a = "what is this?"
 ```
 
-## `Lua`
+## `lua`
 
 ```lua
 local test = "this is a string"