Update release process documentation

Author: directcuteo

website/docs/appendix/release-process.mdx

@@ -96,8 +96,12 @@ Copy and paste this checklist when announcing a release in progress:
 
 - [ ] Main branch merged back to develop
 - [ ] Documentation updated
-- [ ] Release announced in #announcements
-- [ ] Platform lead contacted for infrastructure updates
+- [ ] Release announced in #releases
+- [ ] Release announced in Discord (#rust-node-testing, #mina-web-node,
+      #mina-web-node-testing, #rust-node-questions-and-feedback)
+- [ ] Platform lead contacted for infrastructure updates and a PR on
+      gitops-infrastructure has been opened and merged to update to the latest
+      release
 - [ ] Known issues documented (if any)
 
 **Tracking:** [Link to PR/Issue] **Status:** 🟡 In Progress