📚Fix comment specifying the default engineVersion. (#1450)

Signed-off-by: Tony Worthit <868644+TonyLovesDevOps@users.noreply.github.com>

Signed-off-by: Tony Worthit <868644+TonyLovesDevOps@users.noreply.github.com>

docs/snippets/multiline-template-v1-external-secret.yaml

@@ -11,7 +11,8 @@ spec:
   target:
     name: secret-to-be-created
 
-    # v1 is the default version
+    # v2 is the default engineVersion in external-secrets.io/v1beta1
+    # v1 is the default engineVersion in external-secrets.io/v1alpha1 (deprecated)
     engineVersion: v1
 
     # this is how the Kind=Secret will look like