pidgin/pidgin

Add an AppData description file from Richard Hughes.

2014-11-08, Elliott Sales de Andrade
35d15be861cd
Add an AppData description file from Richard Hughes.
For information on writing a plugin for Purple, Pidgin or Finch, go
https://developer.pidgin.im and click on API. From there, see the
HOWTOs in the "Related Pages" section.
You can also generate this documentation locally by passing
"--enable-gtk-doc" to ./configure, then running "make" in the source tree.
The documentation will be in the doc/reference/*/html directories.