Update readme

[QuantumEnigmaa]

This PR ...

Checklist

• Update CHANGELOG.md
• Add Unit tests
• Follow Alert structure
• Consider creating a dashboard (guidelines) (if it does not exist already) to help oncallers monitor the status of the issue.
• Request review from oncall area, as well as team (e.g: oncall-kaas-cloud GitHub group).

[QuentinBisson]

Nice i would not update the Changelog though :)

[hervenicol]

I was expecting a schema about how inhibitions work, rather than how tests work. That would have shown the the source and target labels and the difference, which we don't see here.

But that will help anyway :)

[QuantumEnigmaa]

Maybe I'll add another graph then :)