Add warning for docker users when switching branch

src/UI/Settings/General/GeneralViewTemplate.hbs

@@ -322,7 +322,11 @@
         <div class="form-group">
             <label class="col-sm-3 control-label">Branch</label>
 
-            <div class="col-sm-4">
+            <div class="col-sm-1 col-sm-push-2 help-inline">
+                <i class="icon-sonarr-form-warning" title="If using Docker, do not use 'develop' or 'nightly' branches"/>
+            </div>
+
+            <div class="col-sm-2 col-sm-pull-1">
                 <input type="text" placeholder="master" name="branch" class="form-control"/>
             </div>
         </div>