[ONOS-3526]Web UI - Provide a 'Navigate to help page' link or button

Change-Id: I5260e625bb8890b31606dc31b43d4df84bd7eaf4
diff --git a/web/gui/src/main/webapp/app/fw/svg/icon.js b/web/gui/src/main/webapp/app/fw/svg/icon.js
index 91b9aee..a24542f 100644
--- a/web/gui/src/main/webapp/app/fw/svg/icon.js
+++ b/web/gui/src/main/webapp/app/fw/svg/icon.js
@@ -42,6 +42,7 @@
         topo: 'topo',
 
         refresh: 'refresh',
+        query: 'query',
         garbage: 'garbage',
 
         upArrow: 'triangleUp',