When #1420 has been merged, find every transcluded README.md document in a secondary entry point, for example libs/cdk/coercing/README.md in secondary entry point @rx-angular/cdk/coercing.

Move the contents to the document transcluding it, in this case apps/docs/docs/cdk/coercing/coercing.mdx.

If there is a partial _docs.md document adjacent to it, move its contents into the main document as well, in this case, coercing.mdx.

Delete relevant entries from implicitDependencies in nx.json.