Correct link to group clusters docs

Not project clusters

app/presenters/group_clusterable_presenter.rb

@@ -31,6 +31,6 @@ class GroupClusterablePresenter < ClusterablePresenter
 
   override :learn_more_link
   def learn_more_link
-    link_to(s_('ClusterIntegration|Learn more about group Kubernetes clusters'), help_page_path('user/project/clusters/index'), target: '_blank', rel: 'noopener noreferrer')
+    link_to(s_('ClusterIntegration|Learn more about group Kubernetes clusters'), help_page_path('user/group/clusters/index'), target: '_blank', rel: 'noopener noreferrer')
   end
 end