Docs feedback: disabled one service too many

https://docs.gitlab.com/ee/administration/high_availability/gitaly.html

Currently has

 # Enable Gitaly
 gitaly['enable'] = true

 ## Disable all other services
 sidekiq['enable'] = false
 gitlab_workhorse['enable'] = false
 unicorn['enable'] = false
 postgresql['enable'] = false
 nginx['enable'] = false
 prometheus['enable'] = false
 alertmanager['enable'] = false
 pgbouncer_exporter['enable'] = false
 redis_exporter['enable'] = false
 gitlab_monitor['enable'] = false
 gitaly['enable'] = false 

The last line in there is wrong, because it should enable gitaly - not disable it. It's not part of the "other" services.