Update mentioned RFC in `json` module

[Viicos]

Documentation

The documentation mentions:

The JSON format is specified by RFC 7159 and by ECMA-404.

However, RFC 7159 was obsoleted by RFC 8259. Should we update the linked RFC?

[AA-Turner]

What is materially different?

A

[Viicos]

Changes described by the appendix, or see the diff. Not much updates, but generally I think it makes sense to reference the latest RFCs in docs.

[ericvsmith]

I don't see a lot of material differences, but I did not spend a lot of time looking at the encoding section. It makes a difference if the json module complies with the new RFC.

[LamentXU123]

The latest RFC actually don't mention new stuff(or some in encoding), its actually a wording update for the former one. Both Ok for the change or just leave it alone.

[KentaroJay]

Hi @Viicos ! I recently started to contribute. Can I take this?

[AA-Turner]

@KentaroJay as you will note from this discussion, it is unclear if a change is needed, when nothing substantive in the specification is different.

A