fix slack link

Signed-off-by: mathisonryan <57193503+mathisonryan@users.noreply.github.com>

Author: mathisonryan

source/getting-help.rst

@@ -1,4 +1,4 @@
 Getting Help
 ============
 
-If you need any help with the DBoM Open Source Project, have ideas for a use case or have any related queries, head on over to our `Slack Workspace <https://communityinviter.com/apps/dbom-project/join-the-dbom-slack/>`__
+If you need any help with the DBoM Open Source Project, have ideas for a use case or have any related queries, head on over to our `Slack Workspace <https://communityinviter.com/apps/dbom-project/dbom>`__