update to version 0.0.9 * Improve tests with extras_require * Fix documentation link in README * Post release version bump to 0.0.9 * Support "python_requires" * Use same version for doc and sdist * Add doc badge to README * Use already used python interpreter * Post release version bump to 0.0.8 * Use Sphinx to build documentation OBS-URL: https://build.opensuse.org/request/show/460992 OBS-URL: https://build.opensuse.org/package/show/openSUSE:Factory/python-metaextract?expand=0&rev=3