Removing forums from CONTRIBUTING.md (#333)

Co-authored-by: Gabe <7622243+decentralgabe@users.noreply.github.com>

CONTRIBUTING.md

@@ -2,7 +2,7 @@
 
 There are many ways to be an open source contributor, and we're here to help you on your way! You may:
 
-* Propose ideas in our [discussion forums](https://forums.tbd.website/)
+* Propose ideas in our SSI [discord](https://discord.com/channels/937858703112155166/969272692891086868) channel
 * Raise an issue or feature request in our [issue tracker](https://github.com/TBD54566975/ssi-sdk/issues)
 * Help another contributor with one of their questions, or a code review
 * Suggest improvements to our Getting Started documentation by supplying a Pull Request
@@ -85,7 +85,7 @@ via [GitHub Issues](https://github.com/TBD54566975/ssi-sdk/issues).
 
 ### Discussions
 
-Design discussions and proposals take place on the [TBD Forum](https://forums.tbd.website/).
+Design discussions and proposals take place in our SSI [discord](https://discord.com/channels/937858703112155166/969272692891086868) channel.
 
 We advocate an asynchronous, written debate model - so write up your thoughts and invite the community to join in!