Overhaul Readme

[ScSteffen]

Need to add tags for test coverage etc.

Need style guide for code formatters. Default should be Black Formatter with default settings (avail on all major IDEs)

[ScSteffen]

Also the README title is missleading.

[anagainaru]

We need documentation as well when we start giving this out to model teams, but the very list a quick usage guide for each of our components in the README

[ScSteffen]

Also, an overview of performance of simple test cases (MNIST+CNN, and Cifar10+ResNet) would be very helpful to get a quick intution for the code.

Similar to this readme https://github.com/microsoft/LoRA

[ScSteffen]

They way to go is probably:

1. A general README.MD on the top level
2. Specific REAMDE.MD for the examples - like a tutorial to run things (in the corresponding example folders)