Add readme page which has links into installed apps and into wp-palvelu readme

[onnimonni]

Make an php file which reads links from config.yml and shows the features of this vagrant box. These are:

• webgrind
• mailcatcher
• terminal
• adminer
• wordpress

[onnimonni]

@anttiviljami do you have visual idea for this?

[anttiviljami]

<h1>Features</h1>
<ul>
<li><a href="#">wordpress</a></li>
<li><a href="#">webgrind</a></li>
<li><a href="#">mailcatcher</a></li>
<li><a href="#">terminal</a></li>
<li><a href="#">adminer</a></li>
</ul>

This good enough?

[ottok]

Currently a subdomain info is added in line https://github.com/Seravo/wordpress/blob/master/Vagrantfile#L279 but no such virtualhost is defined in Nginx, and there is no location where to put the index file discussed in this issue.

[ottok]

Info subdomain also referenced in wp-vagrant-activation: https://github.com/Seravo/wp-palvelu-vagrant/blob/master/roles/scripts/files/wp-vagrant-activation

Loose ends like that should either be implemented correctly or cleaned away.

[ottok]

Cleaned away in 4429aaf8d708d573f4dd703762a5877b23c444ab