Update README.md

Adding a useful link in this page on GoldenGate Instantiation methods

Author: AshokMuduli

data-platform/data-integration/oracle-goldengate/README.md

@@ -118,7 +118,9 @@ Reviewed: 24.04.2024
 
 - [GoldenGate Products Livelabs](https://apexapps.oracle.com/pls/apex/f?p=133:100:3818354990791::::SEARCH:goldengate)
     - Livelabs for all the GoldenGate Products
-
+      
+- [GoldenGate Instantiation methods](https://blogs.oracle.com/dataintegration/post/goldengate-instantiation-methods)
+   - A blog that explains the GoldenGate Instantiation methods using RMAN to create a copy of a large source database for replication.
 
 # License