Added datasette-jq plugin to ecosystem

docs/ecosystem.rst

@@ -80,6 +80,11 @@ datasette-jellyfish
 
 `datasette-jellyfish <https://github.com/simonw/datasette-jellyfish>`__ exposes custom SQL functions for a range of common fuzzy string matching functions, including soundex, porter stemming and levenshtein distance. It builds on top of the `Jellyfish Python library <https://jellyfish.readthedocs.io/>`__.
 
+datasette-jq
+------------
+
+`datasette-jq <https://github.com/simonw/datasette-jq>`__ adds a custom SQL function for filtering and transforming values from JSON columns using the `jq <https://stedolan.github.io/jq/>`__ expression language.
+
 datasette-render-images
 -----------------------