pidgin/nest

Unify contents of contributing section into a single page

- Add some basic content to the index of the development section so that
it's not empty
- Remove contributing/mercurial page since its contents are now in the docs
page for using mercurial or in the (now single) contributing page.
- Add section in contributing page that points to useful link on how to
contribute code.
- Minor cleanups in the pre-existing contributing page
- Fix broken link in about index page that appeared after moving the
contributing section into a single page.

Testing Done:
Ran dev-server.sh and verified contents of the website looked as intended

Bugs closed: NEST-33

Reviewed at https://reviews.imfreedom.org/r/789/
---
title: Pidgin
date: 2019-01-14T18:51:58.000Z
lastmod: 2020-01-14T05:00:21.000Z
---
Pidgin is a chat program which lets you log into accounts on multiple chat
networks simultaneously. This means that you can be chatting with friends on
XMPP and sitting in an IRC channel at the same time.
Pidgin runs on Windows, Linux, and other UNIX-like operating systems. Looking
for Pidgin for OS X? Try [Adium](https://adium.im)!
Pidgin is compatible with the following chat networks out of the box:
Jabber/XMPP, Bonjour, Gadu-Gadu, IRC, Novell GroupWise Messenger, Lotus
Sametime, SILC, SIMPLE, and Zephyr. It can support many more with
[plugins](/plugins).
Pidgin supports many features of these chat networks, such as file transfers,
away messages, buddy icons, custom smileys, and typing notifications. Numerous
plugins also extend Pidgin's functionality above and beyond the standard
features.
Pidgin is under constant development. Releases are usually frequent and driven
by user contributions, such as
[issues](https://issues.imfreedom.org/issues/PIDGIN?u=1) and
[contributions]({{< ref "development/contributing" >}}).
Pidgin is free and contains no ads. All our code is open source and licensed
under the GNU General Public License. This means you can get Pidgin's underlying
code and modify it to suit your needs, as long as you publish the changes you
make for everyone to benefit from as well.
Pidgin is translated into many [different languages]({{< ref
"about/supported-languages" >}}), thanks to the generous contributions of our
volunteer translators.
{{< download-now >}}