Explain that the chart gets mirrored to venafi registries

Signed-off-by: Richard Wall <[email protected]>

Author: wallrj

README.md

@@ -96,7 +96,10 @@ helm push venafi-kubernetes-agent-${VERSION}.tgz oci://eu.gcr.io/jetstack-secure
 > ℹ️ To test the Helm chart before releasing it, use a [pre-release suffix](https://semver.org/#spec-item-9). E.g.
 > `export VERSION=0.1.43-alpha.0`.
 
-The chart will be mirrored to
+The chart will be mirrored to:
+ * `registry.venafi.cloud/charts/venafi-kubernetes-agent` (Public)
+ * `private-registry.venafi.cloud/charts/venafi-kubernetes-agent` (Private, US)
+ * `private-registry.venafi.eu/charts/venafi-kubernetes-agent` (Private, EU)
 
 ### Helm Chart: jetstack-agent