hayamiz/twittering-mode — pull request #93 by mwfogleman (2014-08-13 00:56:14+00:00)
Title: Bind "?" to describe-mode in keymap.

A lot of modes (Magit, Org, for its speed commands, mu4e) bind "?" to describe-mode or something like it, so that you can see what keys do what. I did this right away when I started using twittering-mode, and I'm sure others would like it, too.