Fixed project page on Free Software & Open Technologies section of tis.bz.it

Hi list,

as reported by some of you and brought up in the discussion with Andreas
Mutschlechner, there have been some broken links on the project page of
the Free Software & Open Technologies section on the web site of the TIS
innovation park.

I used the quite days of this week, even if I expected them to be much
more quite - to fix some of the problems on:

https://tis.bz.it/open/projects

I am still not really happy, especially because some projects aren't
listed yet. But it is a first step.

Thank you all for bringing the bugs to my attention and more feedback is
welcome!

Patrick