Contributor Covenant doesn't link to its own license (CC BY 4.0)

[ElenaFdR]

The Contributor Covenant's own license is also not listed in the canonical text.

The way I read the CC BY 4 page, you MUST "provide a link to the license".

---

Edited to reflect the only issue relevant to this repo. We answered our question about which licenses to include in our repo and how by rereading the REUSE specification 3.3.