Release 2.0.2

[kelson42]

• [x] Use latest version of python-scraper lib
• [x] Update the Changelog
• [x] Close current milestone and create new one incrementaly (a priori a minor version)
• [x] Create a tag on git
• [x] Secure new version is published on https://hub.docker.com/r/openzim/sotoki and Github
• [x] Update the Github release with the Changelog
• [ ] Create new empty entry in Changelog (placeholder for future entries)
• [ ] Advertise this new version