Fixes a typo in the rake check

doc/administration/troubleshooting/kubernetes_cheat_sheet.md

@@ -132,7 +132,7 @@ and they will assist you with any issues you are having.
   /srv/gitlab/bin/rails console
 
   # source-style commands should also work
-  /srv/gitlab && bundle exec rake gitlab:check RAILS_ENV=production
+  cd /srv/gitlab && bundle exec rake gitlab:check RAILS_ENV=production
 
   # run GitLab check. Note that the output can be confusing and invalid because of the specific structure of GitLab installed via helm chart
   /usr/local/bin/gitlab-rake gitlab:check