This reverts commit f5a7d8138f78a978057e32ff032b79bb813befbd, reversing
changes made to 647da03e05bc1757099e9a69e1747755a215fcd2.
Reason: QubesOS/qubes-doc#1331 contains a change that prevents GitHub
Pages from building the site:
"The tag `block` on line 12 in
`_doc/developer/debugging/windows-debugging.md` is not a recognized
Liquid tag."
https://github.com/QubesOS/qubesos.github.io/runs/19558577224
Those are redundant, and yaml parser strips them in fact. By removing
them, loading and saving yaml file without any change indeed produce the
same output. This is useful for prepare_for_translation.py script (which
adds lang and ref tags) - to produce only change that indeed was made.
Those are fields used by the language switcher to correlate pages across
different languages, even if they have different names/paths/titles.
They are generated with the prepare_for_translation.py script.
- mark all code blocks with ```
- unify empty lines between sections
- adjust list syntax (no space before dash)
- adjust headers to use Atx-style syntax
- remove trailing spaces
