update 更新 feign demo 更清晰的用法

ruoyi-demo/src/main/java/com/ruoyi/demo/feign/constant/FeignTestConstant.java

@@ -0,0 +1,9 @@
+package com.ruoyi.demo.feign.constant;
+
+public class FeignTestConstant {
+
+	public static final String BAIDU_NAME = "baidu";
+
+	public static final String BAIDU_URL = "http://www.baidu.com";
+
+}