Broken Link for Enrichment Notebook (Update Documentation)

On this page in the documentation:
[https://incatools.github.io/ontology-access-kit/cli.html#runoak-enrichment](https://incatools.github.io/ontology-access-kit/cli.html#runoak-enrichment)

This link is broken:
[https://github.com/INCATools/ontology-access-kit/blob/main/notebooks/Commands/Enrichment.ipynb](https://github.com/INCATools/ontology-access-kit/blob/main/notebooks/Commands/Enrichment.ipynb)

Open the CLI documentation at the runoak enrichment section and check the linked Enrichment.ipynb path in the repository. Find the current notebook location, update the broken documentation link, and verify that the replacement resolves correctly.

Written by the indexing model from the issue text.