Updates docs and ci schema for rules:chages:paths and compare_to
What does this MR do and why?
With !90171 (comment 1014667919) completed, this MR updates the documentation for rules:changes and updates the CI schema.
MR acceptance checklist
This checklist encourages us to confirm any changes have been analyzed to reduce risks in quality, performance, reliability, security, and maintainability.
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I have evaluated the MR acceptance checklist for this MR. 
Edited  by Laura Montemayor