Add repology badge
This is just to advertise that beets is available in distros. The badge links to a list of distro packages for beets and the current versions they have available, which is useful for users and contributors.
.. image:: https://travis-ci.org/beetbox/beets.svg?branch=master
:target: https://travis-ci.org/beetbox/beets
+.. image:: https://repology.org/badge/tiny-repos/beets.svg
+ :target: https://repology.org/project/beets/versions
+
beets
=====
@@ -78,10 +81,12 @@ shockingly simple if you know a little Python.
Install
-------
-You can install beets by typing ``pip install beets``. Then check out the
-`Getting Started`_ guide.
+You can install beets by typing ``pip install beets``.
+Beets has also been packaged in the `software repositories`_ of several distributions.
+Check out the `Getting Started`_ guide for more information.
.. _Getting Started: https://beets.readthedocs.org/page/guides/main.html
+.. _software repositories: https://repology.org/project/beets/versions
Contribute
----------
