Fix some errors

gitea.md

@@ -186,11 +186,11 @@ To get `robots.txt` to work, do steps listed [here](#robotstxt).
 
 For more Nginx configuration, see [certbot](certbot.md) and [nginx](nginx.md).
 
-Apply:
+#### Enable Nginx configuration
 
 ```
 sudo rm /etc/nginx/sites-enabled/default
-sudo ln -s /etc/nginx/sites-available/git.lelux.fi /etc/nginx/sites-enabled/
+sudo ln -s /etc/nginx/sites-available/gitea /etc/nginx/sites-enabled/
 
 sudo systemctl restart nginx
 ```