GitLab

* Update README.md

adding autocast remark to readme

* Update README.md

small typo fix

* Adding notebooks for gradient analysis

* Updated the Readme

Fixing issues in README.md

* Adding plotting routines and reworked Readme

* Added illustration of spherical harmonics to Readme

* Added gradient check to test suite
* reduced size of the unit test
* switched to parametrized for unittests