Merge pull request #1919 from ppzzyy11/master

修改了两个错误的URL

README.md

@@ -27,6 +27,7 @@ With Spring Cloud Alibaba, you only need to add some annotations and a small amo
 
 For more features, please refer to [Roadmap](https://github.com/alibaba/spring-cloud-alibaba/blob/master/Roadmap.md).
 
+
 ## Components
 
 **[Sentinel](https://github.com/alibaba/Sentinel)**: Sentinel takes "traffic flow" as the breakthrough point, and provides solutions in areas such as flow control, concurrency, circuit breaking, and load protection to protect service stability.

spring-cloud-alibaba-examples/nacos-example/nacos-discovery-example/readme.md

@@ -72,7 +72,7 @@ Before we start the demo, let's learn how to connect Nacos Config to a Spring Cl
 
 #### Query Service
 
-Enter `http://127.0.0.1:8848/nacos/v1/ns/instances?serviceName=service-provider` in the browser address bar and click Go to, we can see that the service node has been successfully registered to Nacos Server.
+Enter `http://127.0.0.1:8848/nacos/#/serviceDetail?name=service-provider&groupName=DEFAULT_GROUP` in the browser address bar and click Go to, we can see that the service node has been successfully registered to Nacos Server.
 
 ![查询服务](https://cdn.nlark.com/lark/0/2018/png/54319/1536986288092-5cf96af9-9a26-466b-85f6-39ad1d92dfdc.png)
 

spring-cloud-alibaba-examples/rocketmq-example/readme.md

@@ -73,7 +73,7 @@ spring.cloud.stream.bindings.input.group=test-group
 
 You should startup Name Server and Broker before using RocketMQ Binder.
 
-1. Download [RocketMQ](https://www.apache.org/dyn/closer.cgi?path=rocketmq/4.3.2/rocketmq-all-4.3.2-bin-release.zip) and unzip it.
+1. Download [RocketMQ](https://archive.apache.org/dist/rocketmq/4.3.2/rocketmq-all-4.3.2-bin-release.zip) and unzip it.
 
 2. Startup Name Server