Merge branch 'patch-1' into 'master'

Update installation.md with receive.advertisePushOptions

See merge request gitlab-org/gitlab-ce!14430

doc/install/installation.md

@@ -368,6 +368,9 @@ sudo usermod -aG redis git
     # Enable packfile bitmaps
     sudo -u git -H git config --global repack.writeBitmaps true
     
+    # Enable push options
+    sudo -u git -H git config --global receive.advertisePushOptions true
+
     # Configure Redis connection settings
     sudo -u git -H cp config/resque.yml.example config/resque.yml