Merge code from upstream

spring-cloud-alibaba-examples/nacos-example/nacos-discovery-example/nacos-discovery-spring-cloud-config-client/src/main/java/com/alibaba/cloud/examples/SpringCloudConfigClientApplication.java

@@ -0,0 +1,34 @@
+/*
+ * Copyright (C) 2018 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.alibaba.cloud.examples;
+
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+import org.springframework.cloud.client.discovery.EnableDiscoveryClient;
+
+/**
+ * @author JevonYang
+ */
+@SpringBootApplication
+@EnableDiscoveryClient
+public class SpringCloudConfigClientApplication {
+
+	public static void main(String[] args) {
+		SpringApplication.run(SpringCloudConfigClientApplication.class, args);
+	}
+
+}