List HTTP headers "tdm-reservation" and "tdm-policy"

Proposal

Create the following two pages describing Text and Data Mining (TDM) reservation via HTTP headers:

• https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/tdm-reservation
• https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/tdm-policy

Task list

• Create page https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/tdm-reservation, explain its syntax and reference https://www.w3.org/2022/tdmrep/#sec-tdm-header.
• Create page https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/tdm-policy and possibly another page detailing the intricacies and implications of a TDM policy.

Additional information

Cf. https://www.w3.org/2022/tdmrep/#sec-tdm-header

Are you willing to support this work?

Yes; I would be happy to create a PR for both pages.

Depends on

Possibly an article discussing TDM reservation more broadly; HTTP headers are only one of three currently defined "techniques" (cf. https://www.w3.org/2022/tdmrep/#sec-processing-priority) to state TDM reservation.

Start with the W3C TDM Reservation Protocol section 3.2, linked in the issue, and review the existing MDN HTTP header documentation conventions. Create the tdm-reservation and tdm-policy pages at the specified URLs, documenting syntax and the relevant policy implications, with the required W3C reference. Resolve whether the broader TDM article is needed before considering the work complete.