Add instructions for installing the project

README.md

+# Installing
+
+1. Copy `config.sample.php` to `config.inc.php` and edit to reflect your enviroment
+2. Run `composer install` in the root directory of the project
+3. Run `make` in the root directory of the project
+4. Copy `www/sample.htaccess` to `www/.htaccess` and edit to reflect your enviroment
+5. Run `php script/rebuildDatabase.php` to set up the database
+
 # Creating map tiles:
 
 ## Using maptiler.org