[DOC] "Find out more" directs to Nils repo

[jakirkham]

Report incorrect documentation

Location of incorrect documentation

At the bottom of the GH pages site, the "Find out more" links to Nils repo (though it redirects here atm).

Describe the problems or issues found in the documentation

Old link

Steps taken to verify documentation is incorrect

NA

Suggested fix for documentation

Update link to point to this repo.

[quasiben]

Probably we should delete the gh-pages branch anr/or redirect to the official documentation