Ubuntu Studio user art section update

[Cory K.]

The Ubuntu Studio user art
<https://wiki.ubuntu.com/UbuntuStudio/Artwork/UserContributed> wiki page
has updated the rules for submission.

It's an important change.

/"All postings will be considered licensed under CC-BY-SA v3.0 unless
otherwise noted. Time will be given (month or two) to update submissions
then unlicensed work will be moved to an archived page."/

Now this is not to say that everything needs to be freely licensed
(though it would be nice) just that the license needs to be clearly
noted unless CC-BY-SA is fine with you.

This will allow people to repost freely licensed works elsewhere or give
the project the ability to use submissions.

Any users here who have posted there are encouraged to update their
submissions.

Thanx

-Cory \m/