added url for how to help content

indra/newview/app_settings/settings.xml

@@ -4028,6 +4028,17 @@
       <key>Value</key>
       <string>http://viewer-help.secondlife.com/[LANGUAGE]/[CHANNEL]/[VERSION]/[TOPIC][DEBUG_MODE]</string>
     </map>
+    <key>HowToHelpURL</key>
+    <map>
+      <key>Comment</key>
+      <string>URL for How To help content</string>
+      <key>Persist</key>
+      <integer>1</integer>
+      <key>Type</key>
+      <string>String</string>
+      <key>Value</key>
+      <string>http://common-flash-secondlife-com.s3.amazonaws.com/viewer/v2.6/agni/howto/index.html</string>
+    </map>    
     <key>HomeSidePanelURL</key>
     <map>
       <key>Comment</key>