fix syntax error

services/web/public/coffee/ide/editor/directives/aceEditor/auto-complete/top_hundred_snippets.coffee

@@ -78,7 +78,7 @@ define -> [{
     "snippet": "\\ref{$1}",
     "meta": "cross-reference",
     "score": 0.014379554883991673
-  }{
+}, {
     "caption": "\\frac{}{}",
     "snippet": "\\frac{$1}{$2}",
     "meta": "cmd",