fix: WG-400 absolute URLs and broken links

[wesleyboar]

Overview / Status / Changes

• Use relative URLs not absolute URLs for internal links.
• Fix broken links to /rw/user-guides.
• Ensure all /rw/ links work or are fixed.
• Use Markdown not HTML for many links.
• Record what to test.
• Test.
• (New PR) Use Markdown not HTML for all links.

Related

• WG-400

Testing

1. Run/Deploy this branch.
2. Review changed links.
   ^{(test.md has list of changed pages, with nested list of changed links)}
3. Test changed links.
4. Verify external links open in new tab.

Notes

Note

http://0.0.0.0:8000/user-guide/tools/jupyterhub/ page's directly via https://jupyter.designsafe-ci.org link is appending /jupyterhub most of the time I test. I do not know why, because the source document does not have that.