Closes: team#41474

This is pretty good, but really requires an extensive
dictionary. Right now, we use a "vocabulary", but eventually we might
want to make our own "style" with multiple plugins, in particular
because this would allow us to split the dictionnaries between
different things, like "usernames", "tech" and who knows. Right now
it's all bundled up in the same file, but as it grows, it will become
impractical.

Right now, running vale over the entire wiki yields:

 5742 errors, 0 warnings and 0 suggestions in 222 files.

In comparison, codespell finds zero errors, which is suspicious,
because there *are* errors, if only capitalisation inconsistencies,
but also actual typos like `occured`.

This is not yet in GitLab CI because i don't want to break the
pipeline right off the bat. I also feel we're getting enough into
linting that we should start looking at pre-commit so that those hooks
are correctly run on the client side before push.

just create the page and fill basic install notes

I think i was expecting us to have multiple such styles, but this is
just not happening, so it seems odd to just have that one extra
directory with only one file in it.

Having the file named "mdl" something will also make it easier to
understand what it's about.

I'm not sure why that's flagged as a typo at all. A "crate" is a
perfectly fine english word. I have looked around the dicts and
everywhere and couldn't figure it out. But now i need to stop shaving
yacks and move forward already.

The previous page was standalone, not linked from anywhere, so really
hard to find. It also seems to me small enough that it can fit in
another page. We don't have docs specifically for donate, so let's
cram this in the CRM docs.

Master

See merge request !41