Update Slack channel

Author: rjeberhard

documentation/1.9/themes/hugo-theme-learn/layouts/partials/menu-footer.html

@@ -1,4 +1,4 @@
 <p>Created with <i class="fas fa-heart"></i> from <a href="https://www.oracle.com">Oracle</a></p>
 <p>&nbsp</p>
 <p><a href="https://github.com/oracle/weblogic-deploy-tooling"><i class="fab fa-github"></i> GitHub repo</a></p>
-<p><a href="https://weblogic-slack-inviter.herokuapp.com/"><i class="fab fa-slack"></i> Public Slack #operator</a></p>
+<p><a href="https://weblogic-slack-inviter.herokuapp.com/"><i class="fab fa-slack"></i> Public Slack #weblogic</a></p>