When working with links on a page, it would be nice if mdbook could translate a reference to a .md file to a reference to a generated HTML file.

E.g.
if I have
[Chapter 0](./chapter0.md)
[Chapter 1](./chapter1.md)

In my SUMMARY.md file,

it would be nice to be able to write something like:
In [chapter 1](./chapter1.md) we explain x...
In chapter 0, and have mdbook replace the link with chapter1.html.

This has the advantage of allowing the raw markdown to stay functional as well as the generated html/other possible future formats.