The "Security Goals" page is actually more of a statement of the
developers' security design goals. It does not realy pertain to
*project* security, which is what the "Security Center" page is about,
so I'm moving it to the developer docs (index updated in a separate
commit).
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
