disable pypi test

release 0.3.0b2

update to version 0.3.0b1, configuring pypi and test-pypi

[version] bump version to 0.2.0

[update] only build linux conda on github action

[version] bump version to 0.2.0-beta.6, test for the conda flow

[update] remvoe rst ref in README.rst as not supported by setup.py

[update] update the codecov.yml to exclude files

[publish] the first formal version

[update] stable version at the moment