Add PGM_REFS

Author: SJLennon

README.md

@@ -45,6 +45,10 @@ Commands, with CLP and RPG programs, calling IBM i APis.
 ## APIs_SQL
 
 Commands, CLLE, SQLRPGLE using SQL access to APIs.
+## PGM_REFS
+
+SQL Procedure to find Program Usage recursively using DSPPGMREF
+
 
 ## Printing