Fix schema documentation link in README

[clayrosenthal]

/area documentation

Which area is this documentation change related to?

/area api
/area landing-page

Issue details

The link in the to the generated schema in the README.md points to an old link, devfile.github.io, it seems the new docs are at https://devfile.io/docs/2.3.0

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

The link to the docs is missing.

[michael-valdron]

Hi @clayrosenthal,

Thank you for your contribution! 😄

If you would like to add this change, would you kindly re-open clayrosenthal#1 under the source repository devfile/api.

We would gladly take a look at what you have revised in our README.

[clayrosenthal]

Whoops, misread the repo on the PR. Opened on the correct repo now.