update menu import and export

README.md

@@ -103,6 +103,9 @@ For Sidekiq
     1) If you want to use  sidekiq
        => Create New Lookups => lookup_type = sidekiq, Name = sidekiq , Value = 1 or 0
 
+For Clear Menu
+    1) rake clear:menu # menu,menu item,menu category,menu item instance,account,item option,item 		attribute,item set 
+    
 For Check CUp status	
 ###please open 	
 sudo cat /etc/sudoers