Create a guide for Apache 2 http server

Create only a section to configure and enable websites.

Guides/httpd.md

@@ -0,0 +1,13 @@
+# Apache 2 HTTP server
+
+[Official documentation](http://httpd.apache.org/docs)
+
+## Config available sites
+
+Go to `/etc/apache2/`
+
+Create a new configuration in `/etc/apache2/sites-available`
+
+Enable a configuration by creating a likn in `/etc/apache2/sites-enabled`
+
+`sudo ln --symbolic ../sites-available/kanboard.jovian-hersemeule.eu.conf kanboard.jovian-hersemeule.eu.conf`