Add Wordpress subrepository.
Checkout Wordpress 3.5.1
Adding default wp-content directory
Adding index.php
Pointing index.php to the correct location
Update settings in wp-config.php
updated read me

Using www.cleardb.com as free DB hosted
added information how to update local apache vhosts config to use clear DB database URL
using clearDB database URL (set in apache or heroku config) to config WP db
added procfile and custom boot script for heroku service
fixed web boot path