Make command for EE checkout more clear.

doc/update/6.4-to-6.5.md

@@ -16,8 +16,20 @@ sudo -u git -H bundle exec rake gitlab:backup:create RAILS_ENV=production
 ```bash
 cd /home/git/gitlab
 sudo -u git -H git fetch --all
+```
+
+For Gitlab Community Edition:
+
+```bash
 sudo -u git -H git checkout 6-5-stable
-# For GitLab Enterprise Edition: sudo -u git -H git checkout 6-5-stable-ee
+```
+
+OR
+
+For GitLab Enterprise Edition:
+
+```bash
+sudo -u git -H git checkout 6-5-stable-ee
 ```
 
 ### 3. Update gitlab-shell (and its config)