Update index.html

Author: philsweb

index.html

@@ -8,7 +8,7 @@
     <script src="bower_components/codemirror/mode/xml/xml.js"></script>
 
     <script src="jquery.codemirror.min.js"></script>
-    <link rel="stylesheet" href="codemirror.css">
+    <link rel="stylesheet" href="jquery.codemirror.css">
 
     <style>
         .code-snippet-group-1 {