[wp-docs] New page - Moving to PHP 5

[mrmist]

In message 
<fded39850908031817s57451363u715c0e7d28cda09a at mail.gmail.com>, Lorelle 
VanFossen <lorellevan at gmail.com> writes
>Well? What's the verdict? :D
>
>Thanks for writing this up. If everyone thinks it is ready, let me know and
>I'll add it to the table of contents.
>Thanks for taking this on. It's much needed!
>

It's been a few days now and noone has violently objected so I guess it 
is time to add it to the contents. :)

-- 
mrmist