fix replicaset example

CaoShuFeng · CaoShuFeng · commit b1df73f3e35e · 2018-07-21T17:03:30.000+08:00
diff --git a/content/en/examples/controllers/frontend.yaml b/content/en/examples/controllers/frontend.yaml
@@ -6,8 +6,7 @@ metadata:
     app: guestbook
     tier: frontend
 spec:
-  # this replicas value is default
-  # modify it according to your case
+  # modify replicas according to your case
   replicas: 3
   selector:
     matchLabels:
