README Links Broken

[ramppdev]

Found a little bug: In the README.rst all links are missing the auglib path and therefore result in a 404.

E.g. see:

.. _datasets: https://audeering.github.io/usage.html#augment-a-database-to-disk
.. _examples: https://audeering.github.io/examples.html
.. _external: https://audeering.github.io/external.html
.. _files: https://audeering.github.io/usage.html#augment-files-in-memory
.. _installation: https://audeering.github.io/install.html
.. _signals: https://audeering.github.io/usage.html#augment-a-signal
.. _transforms: https://audeering.github.io/api/auglib.transform.html
.. _usage: https://audeering.github.io/usage.html
.. _user defined: https://audeering.github.io/api/auglib.transform.Function.html

[hagenw]

Thanks for pointing this out, we forgot to re-enable the automatic link check for this project. I do this in #28, and also fix the links there.