[docs] Broken link to schema in config-schema page

[kinow]

What happened?

At the very end of https://fields-database.readthedocs.io/en/latest/content/config-schema.html#schema, near the TODO, there's a link to a schema that's broken. Not sure what it's supposed to point to, so couldn't prepare a PR, sorry.

What are the steps to reproduce the bug?

https://fields-database.readthedocs.io/en/latest/content/config-schema.html#schema

Version

master

Platform (OS and architecture)

NA

Relevant log output

No response

Accompanying data

No response

Organisation

BSC