Invalid docs link

[rkratky]

/area documentation

Which area this documentation change is related to?
https://devfile.io/docs/devfile/2.1.0/user-guide/index.html

Issue details

What mistake did you find / what is missing in the documentation?

[jc-berger]

@rkratky thanks for making an issue to track this work.

I have a PR addressing this broken link: devfile/docs#120