Merge pull request #596 from json-schema-org/steering

Add a note about the future TSC.

Author: Julian

README.md

@@ -339,3 +339,5 @@ There are some sanity checks in place for testing the test suite. You can run
 them with `bin/jsonschema_suite check` or `tox`. They will be run automatically
 by [GitHub Actions](https://github.com/json-schema-org/JSON-Schema-Test-Suite/actions?query=workflow%3A%22Test+Suite+Sanity+Checking%22)
 as well.
+
+This repository is maintained by the JSON Schema organization, and will be governed by the JSON Schema steering committee (once it exists).