use four space indentation for the coffee example

editor.html

@@ -245,26 +245,25 @@ int main ()
 <script type="text/editor" id="coffeetext">#!/usr/bin/env coffee
 
 try
-  throw URIError decodeURI(0xC0ffee * 123456.7e-8 / .9)
+    throw URIError decodeURI(0xC0ffee * 123456.7e-8 / .9)
 catch e
-  console.log 'qstring' + "qqstring" + '''
-    qdoc
-  ''' + """
-    qqdoc
-  """
+    console.log 'qstring' + "qqstring" + '''
+        qdoc
+    ''' + """
+        qqdoc
+    """
 
 do ->
-  ###
-  herecomment
-  ###
-  re = /regex/imgy.test ///
-    heregex  # comment
-  ///imgy
-  this isnt: `just JavaScript`
-  undefined
+    ###
+    herecomment
+    ###
+    re = /regex/imgy.test ///
+        heregex  # comment
+    ///imgy
+    this isnt: `just JavaScript`
+    undefined
 
-var illegal
-</script>
+var illegal</script>
 
   <input id="cockpitInput" type="text"/>