[SE-5472] docs: extend, reword and reorganize documentation
Description
This MR reorganizes, extends and clarifies the documentation. Also, the README.md is replaced as part of this MR to ensure a better understandability of Grove by simply checking the repo.
Resolves #30 (closed)
Test instructions
- Checkout the branch
- Setup a virtualenv with mkdocs
- Run
mkdocs serve
- Proofread the changes -- including the README.md
Edited by Boros Gábor