修改readme

README.md

@@ -30,7 +30,7 @@ spring.dubbo.module.default=false
 
 ### 2. 客户端介绍
 * 配置文件 `application.properties`
-```
+```$xslt
 spring.dubbo.application.name=consumer
 spring.dubbo.registry.address=zookeeper://localhost:2181
 spring.dubbo.scan=com.zhiwei.demo.client
@@ -40,7 +40,7 @@ spring.dubbo.module.default=false
 `spring.dubbo.scan`表示要扫描的`package`目录。
 
 * 启动入口 `com.zhiwei.demo.client.Client`
-```
+```$xslt
 @SpringBootApplication
 public class Client {
     private static Logger logger = LoggerFactory.getLogger(Client.class);