Stack Exchange network consists of 178 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers.
Q&A for work
Connect and share knowledge within a single location that is structured and easy to search.
View all activity pages
This link helps me to solve my problem. : http://wordpress.org/support/topic/how-to-show-the-description-of-the-menu