### Plone Documentation versions affected - [ ] 5.x - [x] 6.x ### Description Migrate https://github.com/plone/documentation/blob/5.2-myst/5.2-myst/develop/plone/searching_and_indexing/external-catalogs.md to Plone 6 docs. Rendered: https://docs.plone.org/develop/plone/searching_and_indexing/external-catalogs.html Update the link in `backend/upgrading/version-specific-migration/upgrade-to-51.md`.
Plone Documentation versions affected
Description
Migrate https://github.com/plone/documentation/blob/5.2-myst/5.2-myst/develop/plone/searching_and_indexing/external-catalogs.md to Plone 6 docs.
Rendered:
https://docs.plone.org/develop/plone/searching_and_indexing/external-catalogs.html
Update the link in
backend/upgrading/version-specific-migration/upgrade-to-51.md.