Branchdifferentiated Documentation

[PaulJonasJost]

I was wondering, if we can have a documentation for each branch i.e. instead of https://icb-dcm.github.io/cOmicsArt/ it would be https://icb-dcm.github.io/cOmicsArt/develop/. In which case one could put building the documentation into the tests, and we would not have to worry about updating documentation ever and can compare for PRs without building this locally and could put the documentation largely into gitignore