Added
- various badges to ``README``
- links to documentation where relevant
- Colab links to tutorial notebooks and ``README`` quickstart
Changed
- ``ApproximateNegativeSamplingInteractionsDataLoader`` uses a ``sampler`` instead of a ``batch_sampler`` for greater speed increases
- base ``Dockerfile`` image to the ``torch1.8.1`` version
- ``read_movielens_posters_df`` now works as expected even when ``data/movielens_posters.csv`` file does not exist
- renamed ``LICENSE.txt -> LICENSE``
- renamed ``pull_request_template.md -> PULL_REQUEST_TEMPLATE.md``