Update doc configs to have a link to cookies

[outoftardis]

The change needed to automate this: #344

After this PR is merged, please cherry-pick the commit to apply the same change to the release branch that you are going to use to update github pages. In other words: we need to make sure the next time github pages are updated, the link to the cookies is there.

Thanks

[outoftardis]

@dcbenito fyi

[akukanov]

Applied in a later patch.