Behavior of the table of consent has been fixed to diplay proper leveling
depth. Use of a structured way of underlining reStructuredText headings is
necessary for this. (see https://www.sphinx-doc.org/en/1.8/usage/restructuredtext/basics.html#sections)

The README.md from the repository root has been converted to reStructuredText
version README.rst to allow inclusion into the document generation. This avoids
having a second file duplicating the text content and the chance of
inconsistencies.