chore: update index.md to point to correct links

Signed-off-by: Abhinandan Purkait <[email protected]>

index.md

@@ -8,7 +8,7 @@ Please refer to Helm's [documentation](https://helm.sh/docs/) to get started.
 Once Helm is set up properly, add OpenEBS Jiva repository to Helm repos:
 
 ```bash
-helm repo add openebs-jiva https://openebs.github.io/jiva-operator
+helm repo add openebs-jiva https://openebs-archive.github.io/jiva-operator
 ```
 
 You can then run `helm search repo openebs-jiva` to see the charts.