Fix spelling error and make sure you never log in as git user so you never...

Fix spelling error and make sure you never log in as git user so you never have to logout to run sudo.

doc/install/databases.md

@@ -8,9 +8,6 @@ GitLab supports the following databases:
 ## MySQL
-    # If you are the git user log out since it doesn't have sudo rights
-    exit
-
     # Install the database packages
     sudo apt-get install -y mysql-server mysql-client libmysqlclient-dev

doc/install/installation.md

@@ -108,28 +108,25 @@ Create a `git` user for Gitlab:
 GitLab Shell is a ssh access and repository management software developed specially for GitLab.
-    # Login as git
-    sudo su git
-
     # Go to home directory
     cd /home/git
     # Clone gitlab shell
-    git clone https://github.com/gitlabhq/gitlab-shell.git
+    sudo -u git -H git clone https://github.com/gitlabhq/gitlab-shell.git
     cd gitlab-shell
     # switch to right version
-    git checkout v1.4.0
-    cp config.yml.example config.yml
+    sudo -u git -H git checkout v1.4.0
+    sudo -u git -H cp config.yml.example config.yml
     # Edit config and replace gitlab_url
     # with something like 'http://domain.com/'
-    vim config.yml
+    sudo -u git -H vim config.yml
     # Do setup
-    ./bin/install
+    sudo -u git -H ./bin/install
 # 5. Database
@@ -213,7 +210,7 @@ Make sure to edit both `gitlab.yml` and `puma.rb` to match your setup.
     # Make sure to update username/password in config/database.yml.
     # You only need to adapt the production settings (first part).
-    # If you followed the database guide than please do as follows:
+    # If you followed the database guide then please do as follows:
     # Change 'root' to 'gitlab'
     # Change 'secure password' with the value you have given to $password
     # You can keep the double quotes around the password