[Systems] Closer integration from static intro Activities page to activities.sugarlabs.org

[Sean DALY]

http://www.sugarlabs.org/index.php?template=page&page=about_activities

Christian,

This beautiful page is missing a link to a.sl.o, except for the top
navbar... however, I am sure the great majority of visitors will
assume the navbar points to the static page and not a different part
of the site.

My suggestion is to add the following text after "kids can't get
enough of them!"

<snip>
Click on an icon below to learn more about each Activity. Download
these Activites, and many more, in our Activities section (((link))).
</snip>

of course, as stated previously we'll need to work soon on integrating
a.sl.o with the homepage

thanks

Sean