docs: Fix a couple of broken link fragments

[rfay]

The Issue

Two Markdown link fragments were broken, and markdownlint was catching it, at least locally.

[stasadev]

Most likely, the local mkdocs is a bit out of date.

I don't see any warnings in the master build:
https://github.com/ddev/ddev/actions/runs/9104906004/job/25029576983#step:6:89

[rfay]

It's actually the markdownlint check that gets it, which is done in docs check. I have markdownlint 0.40.0

[rfay]

Oh, we're using https://github.com/avto-dev/markdown-lint - which is using a vastly outdated markdownlint, seems unmaintained?

[stasadev]

I see, but now mkdocs complains:

INFO    -  Doc file 'developers/release-management.md' contains a link '#maintaining-ddev-dbserver-mysql-57--80-arm64-images', but there is no such
           anchor on this page.
INFO    -  Doc file 'developers/testing-docs.md' contains a link '#fork--clone-the-ddev-repository', but there is no such anchor on this page.

And this link doesn't work http://127.0.0.1:8000/en/stable/developers/testing-docs/#fork--clone-the-ddev-repository

But the previous link does http://127.0.0.1:8000/en/stable/developers/testing-docs/#fork-clone-the-ddev-repository

[rfay]

It looks like we have plenty of other options, https://github.com/marketplace?category=&type=actions&verification=&query=sort%3Apopularity-desc+markdownlint

[rfay]

I agree with you.

1. The links that I used were the ones suggested by Goland (mkdocs integration)
2. They fixed the markdownlint-cli (0.40.0) complaints with current markdownlint
3. They passed our docs check anyway, but that's because our markdownlint github action is vastly out of date
4. markdownlint-cli had its new release 2 weeks ago, and I ended up with it in homebrew.

So this should be reverted and I'll have to figure out my local checks I guess.

[stasadev]

Oh, we're using avto-dev/markdown-lint - which is using a vastly outdated markdownlint

The linter in GitHub actions doesn't seem to be complaining at all.

https://github.com/ddev/ddev/actions/runs/9104906017/job/25029577157#step:10:9

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markdownlint-cli had its new release 2 weeks ago, and I ended up with it in homebrew.

Yes, I have the same release and see the same errors in make staticrequired.