Broken links on docs homepage

[0101]

Links on docs homepage under Documentation Topics are broken. They point to e.g.

• https://fsharp.github.io/fsharp-compiler-docs/overview.md
  instead of just
• https://fsharp.github.io/fsharp-compiler-docs/overview

It should probably be fixed in https://github.com/fsprojects/FSharp.Formatting but we could also just remove the .md suffixes from the docs source. Which will probably work fine everywhere.

[baronfel]

I wonder if this has already been fixed in the FSharp.Formatting tool? I think we're quite behind in this repository at the moment.

[nojaf]

Nope, we put in .html in our Markdown files in the Fantomas repo to overcome this.
It still is a problem in fsdocs. Not sure if there already is an issue created for that.

[dsyme]

Should be fixed by fsprojects/FSharp.Formatting#767

Problem seems to have been related to using relative input paths (which is normal) - the testing for link translation in FSharp.Formatting was only testing absolute input paths --input <absolute-path>

[nojaf]

This appears to be fixed.