Simplified discussion of Psycopg options in installing.rst.

docs/topics/installing.rst

@@ -89,7 +89,7 @@ environment to enable encryption.
 
 If you want to :ref:`store events with PostgreSQL <postgres-module>`, then install with
 the ``postgres`` option. This installs `Psycopg v3 <https://pypi.org/project/psycopg/>`_
-with the C optimization and the connection pool packages, so feel free to make your project depend
+with its C optimization and connection pool packages, so feel free to make your project depend
 directly on ``psycopg[c,pool]`` instead. The C optimization is recommended by the
 `Psycopg <https://www.psycopg.org>`_  developers for production usage. The pre-built binary
 option ``psycopg[binary]`` is a convenient alternative for development and testing, and for those