Add golang syntax highlighting

Change-Id: I858c0139f8f8ccce53f4d33dc1e3c4dc4b69d598
diff --git a/gr-editor/gr-editor.html b/gr-editor/gr-editor.html
index e1b0ba2..8b14acd 100644
--- a/gr-editor/gr-editor.html
+++ b/gr-editor/gr-editor.html
@@ -39,6 +39,7 @@
   <script src="../bower_components/codemirror-minified/mode/css/css.js" ></script>
   <script src="../bower_components/codemirror-minified/mode/dart/dart.js" ></script>
   <script src="../bower_components/codemirror-minified/mode/erlang/erlang.js" ></script>
+  <script src="../bower_components/codemirror-minified/mode/go/go.js" ></script>
   <script src="../bower_components/codemirror-minified/mode/haskell/haskell.js" ></script>
   <script src="../bower_components/codemirror-minified/mode/htmlembedded/htmlembedded.js" ></script>
   <script src="../bower_components/codemirror-minified/mode/htmlmixed/htmlmixed.js" ></script>