Fixed typo in gitlab.yml.example

Created by: mlitwiniuk

When installing gitlab on next host I've noticed a typo. So here's fix.

config/gitlab.yml.example

@@ -29,13 +29,13 @@ gitlab:
   # Email address used in the "From" field in mails sent by GitLab
   email_from: gitlab@localhost
-  # Email address of your support contanct (default: same as email_from)
+  # Email address of your support contact (default: same as email_from)
   support_email: support@localhost
   ## Project settings
   default_projects_limit: 10
   # signup_enabled: true          # default: false - Account passwords are not sent via the email if signup is enabled.
-  # username_changing_enabled: false # default: true - User can change her username/namespace
+  # username_changing_enabled: false # default: true - User can change his username/namespace
 ## Gravatar
 gravatar: