Merge branch 'config/pumaSocket' into 'master'

Use default puma socket in example config

See merge request gitlab-org/gitlab-shell!388

config.yml.example

@@ -13,7 +13,7 @@ user: git
 # only listen on a Unix domain socket. For Unix domain sockets use
 # "http+unix://<urlquoted-path-to-socket>", e.g.
 # "http+unix://%2Fpath%2Fto%2Fsocket"
-gitlab_url: "http://localhost:8080"
+gitlab_url: "http+unix://%2Fhome%2Fgit%2Fgitlab%2Ftmp%2Fsockets%2Fgitlab-workhorse.socket"
 
 # See installation.md#using-https for additional HTTPS configuration details.
 http_settings: