change architecture

Author: Halima Gaye

README.md

@@ -18,7 +18,7 @@ CNO is built on the idea of filling the gap of adoption and avoid mistakes by:
 - Ensuring that your clusters are compliant to your Standards and Governance Policies
 
 # Architecture overview
-![Architecture](image/externals.png)
+![Architecture](image/ArchiCNO.png)
 ## Components
 CNO is an open source project mainly composed of 7 modules.
 1. [cno UI](https://github.com/beopencloud/cno-ui-template)