[Specification page](https://github.com/opencontainers/image-spec/blob/main/spec.md) contains [broken link for RFC 2119](http://tools.ietf.org/html/rfc2119); it should be [https://datatracker.ietf.org/doc/html/rfc2119](https://datatracker.ietf.org/doc/html/rfc2119) instead
Specification page contains broken link for RFC 2119; it should be https://datatracker.ietf.org/doc/html/rfc2119 instead