Add a simple README in the source code

[martinkg]

rpmlint [1] reports that the package contains no documentation

variety.noarch: W: no-documentation
The package contains no documentation (README, doc, etc). You have to include
documentation files.

[1] Rpmlint is a tool to check common errors on rpm packages. Binary and source packages can be checked.

[martinkg (martin-gansser-c)]

created a README file with the following content:

Variety changes the desktop wallpaper on a regular basis, using user-specified or automatically downloaded images.

Variety sits conveniently as an indicator in the panel and can be easily paused and resumed.
The mouse wheel can be used to scroll wallpapers back and forth until you find the perfect one for your current mood.

Apart from displaying images from local folders, several different online sources can be used to fetch wallpapers according to user-specified criteria.

Variety can also automatically apply various fancy filters to the displayed images - charcoal painting, oil painting, heavy blurring, etc.
- so that your desktop is always fresh and unique.
Applying a heavy blurring filter for example is a great way to get abstract-looking and unobtrusive, yet colorful wallpapers, similar in spirit
to the default one in Ubuntu.

Variety was developed by Peter Levi as part of the Ubuntu App Showdown, June-July 2012
Variety was tested and runs on Ubuntu 12.04, Ubuntu 12.10, Xubuntu 12.04, Lubuntu 12.04, Kubuntu 12.04, Linux Mint 13 (Cinnamon and MATE editions).

[James Lu (jlu5)]

Hello,

I added a simple readme to https://github.com/varietywalls/variety/commit/585cd4efe2fd7b7727db59dcd22d01ddba46d29b - thanks for the ideas!