Migrate Flux installation to OCI Helm chart

Signed-off-by: Erik Godding Boye <[email protected]>

Author: erikgb

content/docs/installation/continuous-deployment-and-gitops.md

@@ -51,7 +51,7 @@ flux check
 ### Create a `HelmRepository` resource
 
 ```bash
-flux create source helm cert-manager --url https://charts.jetstack.io
+flux create source helm cert-manager --url oci://quay.io/jetstack/charts
 ```
 
 ### Create a `HelmRelease` resource