Merge pull request #739 from Zhouzi/master

Add Poffer, update contributing with 3rd-party service warning

.github/CONTRIBUTING.md

@@ -7,6 +7,7 @@ Please join us on [chat](https://chat.awesome-selfhosted.com) to clarify any que
  * A  minimum of 3 entries are required to start a new category, otherwise add to the Misc/Other category.
  * Entries should be ordered alphabetically.
  * Non-[Free](https://en.wikipedia.org/wiki/Free_software) software must be marked `⊘ Proprietary` next to the title, and added to [non-free.md](non-free.md).
+ * The `⚠` character must be inserted for software that relies on a third party service the user does not control, e.g ``[Name](http://homepage/) `⚠` - Short description...``.
  * Check current [issues](https://github.com/Kickball/awesome-selfhosted/issues) and [Pull Requests](https://github.com/Kickball/awesome-selfhosted/pulls), as well as [closed issues/PRs](https://github.com/Kickball/awesome-selfhosted/pulls?utf8=%E2%9C%93&q=is%3Aclosed+).
  * The list of contributors can be updated with `make contrib`. Several checks are available: `make noexternallink; make missinglicenselanguage; make nofullstop` 
  * Software with no development activity for 6-12 months may be removed from the list.

AUTHORS

@@ -200,3 +200,4 @@
 1   stevesbrain <stevesbrain@users.noreply.github.com>
 1   ttoups <ich@timotoups.de>
 1   wxcafé <wxcafe@wxcafe.net>
+1   Zhouzi <hello@gabinaureche.com>

README.md

@@ -121,11 +121,12 @@ _Business Intelligence_
   * [Medusa](https://github.com/pymedusa/SickRage) - Automatic Video Library Manager for TV Shows. It watches for new episodes of your favorite shows, and when they are posted it does its magic. `GPLv3` `Python`
   * [Node RED](http://nodered.org/) - A browser-based flow editor that helps you wiring hardware devices, APIs and online services to create IoT solutions. ([Source Code](https://github.com/node-red/node-red)) `Apache` `Nodejs`
   * [openHAB](http://www.openhab.org) - Vendor and technology agnostic open source software for home automation. ([Source Code](https://github.com/openhab/openhab)) `EPLv1` `Java`
+  * [Poffer](http://poffer.gabinaureche.com) `⚠` - A tool that makes it easier to share the content you like thanks to Pocket+Buffer. ([Source Code](https://github.com/Zhouzi/Poffer)) `MIT` `Nodejs`
   * [RSS-Bridge](https://github.com/sebsauvage/rss-bridge) - rss-bridge is a PHP project capable of generating ATOM feeds for websites which don't have one. `Public domain` `PHP`
   * [SickRage](http://sickrage.github.io/) - SickRage is an automatic Video Library Manager for TV Shows. Automatic torrent/nzb searching, downloading, and processing at the qualities you want. ([Source Code](https://github.com/SickRage/SickRage/)) `GPLv3` `Python`
   * [Sonarr](https://sonarr.tv/) - An automatic TV Shows downloader and manager for Usenet and BitTorrent. It can grab, sort and rename new episodes and automatically upgrade the quality of files already downloaded when a better quality format becomes available. ([Source Code](https://github.com/Sonarr/Sonarr)) `GPLv3` `C#`
   * [TriggerHappy](http://trigger-happy.eu/) - An opensource clone of IFTTT, a bridge between your internet services. ([Source Code](https://github.com/foxmask/django-th)) `BSD` `Python`
-  * [WTFDYUM](https://github.com/jchampemont/WTFDYUM) a.k.a Why The Fuck Did You Unfollow Me - Find out who stops following you on Twitter. ([Demo](https://www.wtfdyu.me/), [Source Code](https://github.com/jchampemont/WTFDYUM)) `Apache` `Java`
+  * [WTFDYUM](https://github.com/jchampemont/WTFDYUM) `⚠` - Why The Fuck Did You Unfollow Me - Find out who stops following you on Twitter. ([Demo](https://www.wtfdyu.me/), [Source Code](https://github.com/jchampemont/WTFDYUM)) `Apache` `Java`
   * [Zenbot 3](https://s8f.org/zenbot.html) - Zenbot is a lightweight, extendable, artificially intelligent trading bot for Bitcoin, Ether, Litecoin, and more. ([Demo](https://zenbot.s8f.org/), [Source Code](https://github.com/carlos8f/zenbot)) `MIT` `Node.js`