README: Add links to our chat rooms

Signed-off-by: Danct12 <[email protected]>

README.md

@@ -3,3 +3,8 @@
 This repository contains PKGBUILDs for running ALARM on the PinePhone/PineTab.
 
 Compiled rootfs images can be found in "Releases"
+
+## Come talk to us!
+ * Discord: https://discord.gg/AvtdRJ3 (#archlinux-pinephone)
+ * Matrix: #archlinux-pinephone:kde.org
+ * Telegram: @archlinux_pinephone