Added Tuber - Peer-to-peer video chat that works

https://blog.trailofbits.com/2015/12/15/self-hosted-video-chat-with-tuber/

https://github.com/trailofbits/tubertc/blob/master/LICENSE

README.md

@@ -280,6 +280,7 @@ _[Extensible Messaging and Presence Protocol](https://en.wikipedia.org/wiki/XMPP
   * [TextBelt](https://github.com/typpo/textbelt) - An outgoing SMS API that uses carrier-specific gateways to deliver your text messages for free, and without ads. ` ⚠ ` `MIT` `JavaScript`
   * [Tox](https://tox.chat/) - A distributed, secure messenger with audio and video chat capabilities. `GPLv3` `C`
   * [Zulip](https://zulip.org) - Zulip is a powerful, open source group chat application. ([Source Code](https://github.com/zulip/zulip))`Apache 2.0/Other` `Python/Django`
+  * [Tuber](https://blog.trailofbits.com/2015/12/15/self-hosted-video-chat-with-tuber/)Peer-to-peer video chat that works. ([Source Code](https://github.com/trailofbits/tubertc)) `MIT` `JavaScript`
 
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