docs: readme revamp - support (#2002)

Co-authored-by: colin axnér <25233464+colin-axner@users.noreply.github.com>

README.md

@@ -68,6 +68,14 @@ The Inter-Blockchain Communication protocol (IBC) allows blockchains to talk to
 
 For an overview of upcoming changes to ibc-go take a look at the [roadmap](./docs/roadmap/roadmap.md).
 
+## Support
+
+We have active, helpful communities on Discord and Telegram.
+
+For questions and support please use the `new-devs-support` channel in the [Cosmos Network Discord server](https://discord.com/channels/669268347736686612/699634178173698108) or join the [IBC Gang Discord server](https://discord.gg/RdpdkaXKpZ). The issue list of this repo is exclusively for bug reports and feature requests.
+
+To receive announcements of new releases or other technical updates, please join the [IBC is expansive Telegram group](https://t.me/ibc_is_expansive).
+
 ## Resources
 
 - [IBC Website](https://ibcprotocol.org/)