anchor link checks should support <a name="foo"></a>

[z1c0]

With the recently introduced anchor link check (which is great btw!) I encounter frequent errors when using explicit HTML-like anchors.

e.g.

...
Take me to [pookie](#pookie)
...
<a name="pookie"></a>
...

[nschonni]

Duplicate of #195

[per1234]

This has been resolved (I assume by 0348390 / #331, but can't precisely bisect due to #368).

$ printf 'Take me to [pookie](#pookie)\n\n<a name="pookie"></a>\n' > /tmp/foo.md

$ npx github:tcort/markdown-link-check#29694c8 /tmp/foo.md  # Last usable bad commit.

FILE: C:/Users/per/AppData/Local/Temp/foo.md
  [✖] #pookie

  1 links checked.

  ERROR: 1 dead links found!
  [✖] #pookie → Status: 404

$ npx github:tcort/markdown-link-check#834a4e2 /tmp/foo.md  # First usable good commit.

FILE: C:/Users/per/AppData/Local/Temp/foo.md
  [✓] #pookie

  1 links checked.