hardened should be in the values

docs/developer/test-package-against-bb.md

@@ -11,9 +11,10 @@ As part of your MR that modifies istio you will need to run bigbang tests agains
       git:
         tag: null
         branch: my-package-branch-that-needs-testing
-      istio:
-        hardened:
-          enabled: true
+      values:
+        istio:
+          hardened:
+            enabled: true
     ```
 1. Stage your changes `git add -A`
 1. Commit your changes `git commit -m "prepping for test"`