change to ref

Author: ryan-mist

website/content/en/preview/upgrading/upgrade-guide.md

@@ -93,7 +93,7 @@ Karpenter `1.1.0` drops the support for `v1beta1` APIs.
 **Do not** upgrade to `1.1.0`+ without following the [Migration Guide]({{<ref "../../v1.0/upgrading/v1-migration.md#before-upgrading-to-v110">}}).
 {{% /alert %}}
 
-* In the [getting started guide's cloudformation template](https://karpenter.sh/preview/reference/cloudformation/#rules), 
+* In the [getting started guide's cloudformation template]({{<ref "../../v1.10/reference/cloudformation/#rules">}}), 
   there is an extra `detail-type` for EventBridge rules to capture Capacity Reservation Instance Interruption warnings. 
   If you are using interruptible ODCRs, you will need to update your EventBridge rules to add this `detail-type`.