Broken links in README.md

[krakxn]

Contexts:

Feel free to submit a pull request, with anything from small fixes, to full new sections. If you are writing new content, please reference the contributing page for guidance on style.

If you've written an article or blog post, please add it to the bibliography.

Problem:

Here, the contributing and bibliography redirects do not function as intended, and lead to a 404/Path not found error.

Solution:

If they do exist, the problem most likely arises because of the GitHub change from master to main and can be fixed as such.

Cheers!