added margin to tags

lms/static/coffee/src/discussion/views/discussion_thread_view.coffee

@@ -34,7 +34,7 @@ if Backbone?
         @responsesRequest.abort()
 
     renderTags: ->
-      tags
+      # tags
       for tag in @model.get("tags")
         if !tags
           tags = $('<div class="thread-tags">')

lms/static/sass/_discussion.scss

@@ -456,6 +456,7 @@ body.discussion {
   }
 
   .thread-tag {
+    margin-right: 5px;
     padding: 3px 10px 6px;
     border-radius: 3px;
     color: #333;