Improving the "Getting involved" section on the php.net website

Hi, all

Inspired by the link http://www.phpinternalsbook.com/, provided by Ferenc
Kovacs in the thread "[PHP-DEV] About PHP NG "document lacking" argument",
I wondered why we don't gather useful links for internal PHP documentation
on the php.net website.

At the time I asked for material to contribute to PHP a view months ago, I
just found a few posts by Anthony (
http://blog.ircmaxell.com/search/label/PHP%20Source%20Code%20For%20PHP%20Developers%20Series)
and I really would have liked to get a link to something more.

Why don't we add links or an internal documentation to the
getting-involved-page on php.net http://php.net/get-involved.php?

Here is the current text for if you want to contribute as a C developer,
what I think is way too less information:

Development of the PHP source

Someone hoping to become involved in the maintenance and development of
the
source should be experienced in all of the areas mentioned above, as this
creates
a strong team; everyone knows how every other part of the project works.

You will also need experience in C programming as PHP is written entirely
in C.

Bye,
Simon