Add browser config section

And SQL superuser profile for installation with browser.

Guides/wiki.md

@@ -23,6 +23,12 @@ Do not use wiki in url filepath.
 
 ### PostgreSQL
 
+Install profile, used during the installation phase :
+```
+CREATE USER install WITH SUPERUSER PASSWORD '1eh87x2_tt';
+```
+
+Wiki profile :
 
 ```
 sudo -u postgres psql
@@ -67,10 +73,18 @@ sudo chown -R www-data:www-data /var/www/mediawiki
 
 ### Cli config
 
+This config is very difficult to handle. It is much easier to use the configuration with browser.
+
 ```
 php maintenance/install.php
 ```
 
+### Configuration with browser
+
+Make the folder `/var/www/mediawiki` served by _httpd_.
+
+Then open the url : `http://domain.com/mw-config`
+
 ### Apache HTTPS
 
 _todo_