Merge branch 'rs-install-guide' into 'master'

Change 7-14-stable to 8-0-stable in doc/install/installation.md

Also fixes sudo user from previous MR.

[ci skip]

See merge request !1320

doc/install/installation.md

@@ -207,9 +207,9 @@ We recommend using a PostgreSQL database. For MySQL check [MySQL setup guide](da
 ### Clone the Source
 
     # Clone GitLab repository
-    sudo -u git -H git clone https://gitlab.com/gitlab-org/gitlab-ce.git -b 7-14-stable gitlab
+    sudo -u git -H git clone https://gitlab.com/gitlab-org/gitlab-ce.git -b 8-0-stable gitlab
 
-**Note:** You can change `7-14-stable` to `master` if you want the *bleeding edge* version, but never install master on a production server!
+**Note:** You can change `8-0-stable` to `master` if you want the *bleeding edge* version, but never install master on a production server!
 
 ### Configure It
 

doc/update/7.14-to-8.0.md

@@ -99,8 +99,8 @@ Don't store it in the same place as your database backups,
 otherwise your secrets are exposed if one of your backups is compromised.
 
 ```
-sudo -u gitlab -H cp config/secrets.yml.example config/secrets.yml
-sudo -u gitlab -H chmod 0600 config/secrets.yml
+sudo -u git -H cp config/secrets.yml.example config/secrets.yml
+sudo -u git -H chmod 0600 config/secrets.yml
 ```
 
 ### 7. Install libs, migrations, etc.