Drypy

- shpinx: fix conf.py, was still using old `get_version` function

- docs: added docs own `requirements.txt` with sphinx rtd theme (19)
- build: now build automatically reads the current git tag, instead of relying
on `version.py` and `get_version()` function (removed)

NOTE: switching to gitflow to handle branches and versions.

- docs: added `.readthedocs.yaml` file as required by Read The Docs (18)

- docs: added an `important` block to guide about how to avoid `RecursionError`.
- docs: added 'setup logging' page

First stable version, provides two patterns, sham and sheriff-deputy.