Fix typos in monitoring examples.
--- An example of monitoring pgBackRest from within PostgresSQL
+-- An example of monitoring pgBackRest from within PostgreSQL
--
-- Use copy to export data from the pgBackRest info command into the jsonb
--- type so it can be queried directly by PostgresSQL.
+-- type so it can be queried directly by PostgreSQL.
-- Create monitor schema
create schema monitor;
