Describe the bug
The link from the old website (Release checklist) does not work anymore.

To Reproduce
Steps to reproduce the behavior:

1. Go to Pipeline release docs, scroll down to "Making the release" or just google the checklist
2. Click on link to release checklist
3. See 404 error

Expected behavior
Wrong link should be replaced with: https://nf-co.re/docs/contributing/release_checklist/