Update README.md

Versioning repo

Author: lgrateau

README.md

@@ -17,6 +17,17 @@ The ODM Docker material is used here, which is available in the [odm-ondocker](h
 
 ![Flow](images/ODMinKubernetes-DeploymentOverview.png)
 
+## Supported Versions  
+
+This repository provides materials for the following versions of IBM ODM:  
+
+| ODM Version      |
+|--------------|
+| **[9.0.0.1 (Latest)](README.md)**    |
+| **[8.12.0.1](https://github.com/DecisionsDev/odm-docker-kubernetes/tree/8.12.0.1)**                               |
+| **[8.11.0.1](https://github.com/DecisionsDev/odm-docker-kubernetes/tree/8.11.0.1)**                               |
+
+Each version has dedicated deployment instructions and materials tailored to its release. Select the version that matches your requirements for compatibility and features.  
 
 ### Deploying ODM Rules on a specific platform