Auto merge of #5689 - tejasbubane:bundle-add-command-main-man, r=segiddins
Auto merge of #5689 - tejasbubane:bundle-add-command-main-man, r=segiddins

Add `bundle add` command to the main man page

This command added in `v1.15` was not present in the main man page.

dilumnavanjana/bundler,bundler/bundler,dilumnavanjana/bundler,bundler/bundler,mvz/bundler,mvz/bundler