Fix more broken links

(cherry picked from commit 891ff25)

README.md

@@ -172,7 +172,7 @@ A curated list of amazingly awesome open source resources for broadcasters.
 * [rtmp](https://github.com/c-bata/rtmp) - Server implementation of Adobe's RTMP 1.0 protocol in Go.
 * [Snowmix](https://sourceforge.net/projects/snowmix/) - Live Video Mixer.
 * [SoX](http://sox.sourceforge.net/) - The Swiss Army knife of sound processing programs.
-* [TuttleOFX](http://www.tuttleofx.org/) - An open source image processing framework based on OpenFX plugin standard.
+* [TuttleOFX](https://github.com/tuttleofx/TuttleOFX) - An open source image processing framework based on OpenFX plugin standard.
 * [UPipe](https://github.com/cmassiot/upipe/) - Primarily designed to be the core of a multimedia player, transcoder or streamer.
 * [VideoContext](https://github.com/bbc/videocontext) - Experimental HTML5/WebGL library for creating interactive and responsive web videos.
 * [Voctomix](https://github.com/voc/voctomix) - Customizable conference recording/mixing/streaming software based on Python and GStreamer.
@@ -191,7 +191,7 @@ A curated list of amazingly awesome open source resources for broadcasters.
 * [Audacity](https://www.audacityteam.org/) - Cross-platform software for recording and editing sounds.
 * [AzuraCast](https://github.com/AzuraCast/AzuraCast) - A self-hosted web radio management suite.
 * [LibreTime](http://libretime.org/) - Radio broadcast & automation platform (fork of Airtime).
-* [Liquidsoap](https://github.com/savonet/liquidsoap) - A Swiss army knife for multimedia streaming ([documentation](http://liquidsoap.fm/index.html)).
+* [Liquidsoap](https://github.com/savonet/liquidsoap) - A Swiss army knife for multimedia streaming ([documentation](https://www.liquidsoap.info/doc.html)).
 * [OpenBroadcaster](https://openbroadcaster.com/) Open Source LPFM IPTV Broadcast Automation. [Server and Player code here](https://github.com/openbroadcaster).
 * [RAAR](https://github.com/radiorabe/raar) - A ruby application to manage and browse an audio archive.
 * [Rivendell](http://www.rivendellaudio.org/) - Complete radio broadcast automation solution, translated to many languages and used worldwide.