[CI, Docs] Update post-release notification instructions
There is automation that posts announcements to the "Chef Release
Announcements" Discourse channel to a Chef-internal Slack channel, so
we should post there.
Additionally, a "merge freeze" is no longer necessary with our new
pipeline.
@@ -294,11 +294,10 @@ the stable channel.
# Release Notification
-1. Create new posts in [Habitat Announcements](https://discourse.chef.io/c/habitat) on the Chef discourse as well as [Announcements](https://forums.habitat.sh/c/announcements) in the Habitat forums.
+1. Create new posts in [Chef Release Announcements](https://discourse.chef.io/c/chef-release) on the Chef Discourse as well as [Announcements](https://forums.habitat.sh/c/announcements) in the Habitat forums.
1. Tweet a release announcement from `@habitatsh`.
1. Link forum posts to the github release
1. Link github release to forum post
-1. Announce that the "Freeze" on merges to master is lifted in both the Chef internal slack team and in the Habitat slack team.
# Update Cargo.lock
