RateLimit Headers updates: implementations and support

Hi @all,

for those interested in the ratelimit headers standardization proposal [1]:

- The Dutch government API strategy supports it;
- Kong API gateway is working to implement it
https://github.com/Kong/kong/pull/5335.

As a reminder, at IETF106 we discussed on:

- support for structured headers (help wanted) [2]
- relationship with proxies and security considerations
- improve FAQ (eg. why github ratelimit model is not enough and
contributes to header proliferation) [3]
- support scope [4]

Have a nice day,
R.
---
[1]: https://github.com/ioggstream/draft-polli-ratelimit-headers
[2]: https://github.com/ioggstream/draft-polli-ratelimit-headers/issues/35
[3]: https://github.com/ioggstream/draft-polli-ratelimit-headers/blame/master/draft-polli-ratelimit-headers.md#L1011
[4]: https://github.com/ioggstream/draft-polli-ratelimit-headers/issues/70