Added Documentations

[andreped]

Made the initial draft of the Documentations, which are stored in docs/.

The goal is to serve this at readthedocs.org, and offer more detailed examples, use cases, and API documentation on existing methods.

Not completely finished yet, but I am open to feedback on the current solution (hence, draft).

TODO:

• [x] Setup Docs using Sphinx with autodocs
• [ ] Add examples for all normalization techniques
• [ ] Add PyTorch and TensorFlow Dataset generation for training examples
• [ ] Link and serve this repo to Read The Docs

[andreped]

Might be that we should bundle example for individual methods we wish to make accessible by the end user directly from the code documentations, like Keras and scikit-learn do.