readme.md: add IRC channel

readme.md: add link to libera.chat
2021-11-22 22:13:48 +01:00 · 2021-11-22 22:13:48 +01:00 · abd718b024
commit abd718b024
--- a/readme.md
+++ b/readme.md
@ -7,6 +7,7 @@ SDR++ is a cross-platform and open source SDR software with the aim of being blo

 * [Patreon](https://patreon.com/ryzerth)
 * [Discord Server](https://discord.gg/aFgWjyD)
+* IRC: `#sdrpp` ([libera.chat](https://libera.chat))

 ## Features