Add JSON, Composite and Ranges types to the working with types how-to

docs/index.rst

@@ -204,10 +204,7 @@ These are recipes that'll help you address specific use-cases.
 
    how-tos/*
 
-- :doc:`how-tos/casting-type-to-custom-json`
-- :doc:`how-tos/embedding-table-from-another-schema`
 - :doc:`how-tos/providing-images-for-img`
-- `How PostgreSQL triggers work when called with a PostgREST PATCH HTTP request <https://blog.fgribreau.com/2020/11/how-postgresql-triggers-works-when.html>`_
 - :doc:`how-tos/working-with-postgresql-data-types`
 
 Ecosystem