Update moonscript syntax highlight colors

code.md

@@ -48,7 +48,11 @@ end
 ## `moonscript`
 
 ```moon
+-- This is a comment
+-- @param str A string.
+
 class Thing
+  this = self
   name: "unknown"
 
 class Person extends Thing
@@ -57,5 +61,43 @@ 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
+author = "Wittgenstein"
+quote  = "A picture is a fact. -- #{ author }"
+
+sentence = "#{ 22 / 7 } is a decent approximation of π"
+```
+
+## `JavaScript`
+
+```javascript
+let a = "what is this?"
+```
+
+## `Lua`
+
+```lua
+local test = "this is a string"
+```