Documentation quirks

Our documentation needs some refresh:

• Code-block misalignments: https://www.idiap.ch/software/bob/docs/latest/bob/bob.extension/master/guide.html#release-methodology-for-satellite-packages
• Non functioning REF_: https://www.idiap.ch/software/bob/docs/latest/bob/bob.extension/master/cpp_api.html#c-api-of-the-documentation-classes
• Needs refresh: https://www.idiap.ch/software/bob/docs/latest/bob/bob.extension/master/guide.html#change-the-version-of-your-satellite-package
• Improve the development guide