Removed the slack archives
Removed the slack archive linke because it doesn't exist anymore.
@@ -101,9 +101,8 @@ the contributors guide.
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<p>
Register for the Docker Community Slack at
- <a href="https://community.docker.com/registrations/groups/4316" target="_blank">https://community.docker.com/registrations/groups/4316</a>.
+ <a href="https://dockr.ly/slack" target="_blank">https://dockr.ly/slack</a>.
We use the #moby-project channel for general discussion, and there are separate channels for other Moby projects such as #containerd.
- Archives are available at <a href="https://dockercommunity.slackarchive.io/" target="_blank">https://dockercommunity.slackarchive.io/</a>.
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