Updated doc

Signed-off-by: Sebastián Gómez <sebastiangomezcorrea@gmail.com>

docs/snippets/aws-sm-external-secret.yaml

@@ -19,3 +19,15 @@ spec:
     remoteRef:
       key: friendslist
       property: friends.1.first # Roger
+  # metadataPolicy to fetch all the labels in JSON format
+  - secretKey: tags
+    remoteRef:
+      metadataPolicy: Fetch 
+      key: database-credentials
+
+  # metadataPolicy to fetch a specific label (dev) from the source secret
+  - secretKey: developer
+    remoteRef:
+      metadataPolicy: Fetch 
+      key: database-credentials
+      property: dev