Create README.md for automatic transaction rollback feature

Author: uschwinn

data-platform/core-converged-db/database-23c/transactions/automatic-rollback/README.md

@@ -0,0 +1,32 @@
+# Automatic Transaction Rollback Feature 
+
+In Oracle Database 23c, apps can assign priorities (LOW, MEDIUM, HIGH) to transactions and configure how long a higher priority transaction should wait for row locks on a lower priority one. After the timeout, 
+the blocking transaction is automatically rolled back and row locks released so that the higher priority transaction can proceed.
+ 
+
+## Useful Links
+
+### Documentation
+
+- [23c Database Administrator's Guide](https://docs.oracle.com/en/database/oracle/oracle-database/23/admin/managing-transactions.html#GUID-14B028D0-48EA-4675-A113-48286AFCD8AB)
+- [23c Database Reference](https://docs.oracle.com/en/database/oracle/oracle-database/23/refrn/TXN_PRIORITY.html#GUID-9E60833D-8B58-4E71-9CAF-60EB4C5648C7)
+- [23c Database Reference](https://docs.oracle.com/en/database/oracle/oracle-database/23/refrn/TXN_AUTO_ROLLBACK_HIGH_PRIORITY_WAIT_TARGET.html#GUID-B835CD39-221B-40CF-8F59-098101FD2D74)
+- [23c Database Reference](https://docs.oracle.com/en/database/oracle/oracle-database/23/refrn/TXN_AUTO_ROLLBACK_MODE.html#GUID-454171AA-19AA-44FC-A18D-0DE7C4676190)
+
+
+### Team Publications
+
+- [Automatic transaction rollback in 23c with high, medium and low priority transactions](https://blogs.oracle.com/coretec/post/automatic-transaction-rollback-in-23c)
+
+### Blogs
+
+- [Automatic transaction rollback in 23c with high, medium and low priority transactions](https://blogs.oracle.com/coretec/post/automatic-transaction-rollback-in-23c)
+
+
+# License
+
+Copyright (c) 2023 Oracle and/or its affiliates.
+
+Licensed under the Universal Permissive License (UPL), Version 1.0.
+
+See LICENSE for more details.