Prepare release 0.1.0 (#31)
* update release notes
* remove pys2index from binder environment
Sadly, binder seems to use a recent linux OS version, for which the
pys2index conda-forge package seems to be broken (seg fault).
* add pypi publish github action
* update dependencies
Make scipy a required dependency (to have at least one built-in index
adapter).
Make scikit-learn a required dev dependency (used in tests for computing
brute force neighbor lookup).
* add install instructions
* change xoak formatting in notebooks
* update readme with description, install, etc.
* add description from README in doc index
