Fix issue 21309 along with other dead links on dlang.org

[ljmf00]

Signed-off-by: Luís Ferreira contact@lsferreira.net

---

This PR regenerates mak/DOCS files, fix some wrong documentation on Params and Source sections.

Also, if someone knows a better approach for generating $(DOCDIR)/%.html : src/%.d $(DMD) makefile targets in a more generic way, would be cool. I don't know much about Makefile and I think that's kinda dirty, although this approach was already there.

[dlang-bot]

Thanks for your pull request and interest in making D better, @ljmf00! We are looking forward to reviewing it, and you should be hearing from a maintainer soon.
Please verify that your PR follows this checklist:

• My PR is fully covered with tests (you can see the coverage diff by visiting the details link of the codecov check)
• My PR is as minimal as possible (smaller, focused PRs are easier to review than big ones)
• I have provided a detailed rationale explaining my changes
• New or modified functions have Ddoc comments (with Params: and Returns:)

Please see CONTRIBUTING.md for more information.

---

If you have addressed all reviews or aren't sure how to proceed, don't hesitate to ping us with a simple comment.

Bugzilla references

Auto-close	Bugzilla	Severity	Description
✓	21309	regression	Missing core.thread.threadbase documentation

⚠️⚠️⚠️ Warnings ⚠️⚠️⚠️

• Regression or critical bug fixes should always target the stable branch. Learn more about rebasing to stable or the D release process.

To target stable perform these two steps:

1. Rebase your branch to upstream/stable:

git rebase --onto upstream/stable upstream/master

2. Change the base branch of your PR to stable

Testing this PR locally

If you don't have a local development environment setup, you can use Digger to test this PR:

dub run digger -- build "master + druntime#3345"

[ljmf00]

Is documentation issues part of regression severity?

[Geod24]

Thanks