[Docs update] Correct "How to assign a dataset identifier" link

[pzwsk]

If you are proposing changes or updates to the RDL documentation, then please fill in the below template.

What is the context or reason for the change?

When on this page https://docs.riskdatalibrary.org/en/latest/reference/browser/ and looking at id field, it is written : For more information, see how to assign a dataset identifier.

However, when clicking on the link it brings you to the Codelists page. The correct link should be https://docs.riskdatalibrary.org/en/latest/guides/metadata/#assign-a-dataset-identifier

What is your proposed change?

In https://docs.riskdatalibrary.org/en/latest/reference/browser/
replace "how to assign a dataset identifier" url https://rdl-standard.readthedocs.io/en/latest/reference/codelists/#assign-a-dataset-identifier
with https://docs.riskdatalibrary.org/en/latest/guides/metadata/#assign-a-dataset-identifier

[pzwsk]

Correction:

change should be made in the rdls schema itself (line 22)

https://github.com/GFDRR/rdl-standard/blob/main/schema/rdls_schema.json

[pzwsk]

@duncandewhurst or @matamadio appreciate if you could have a quick look to confirm

[matamadio]

Agree on the proposed change.