Update README.md

Author: hengboy

README.md

@@ -64,9 +64,9 @@
 
 Demo列表：
 
-- [ApiBoot Security Oauth](https://github.com/hengboy/api-boot/api-boot-samples/api-boot-sample-security-oauth-jwt/README.md)
-- [ApiBoot Swagger](https://github.com/hengboy/api-boot/api-boot-samples/api-boot-sample-swagger/README.md)
-- [ApiBoot Http Converter](https://github.com/hengboy/api-boot/api-boot-samples/api-boot-sample-http-converter/README.md)
+- [ApiBoot Security Oauth](https://github.com/hengboy/api-boot/tree/master/api-boot-samples/api-boot-sample-security-oauth-jwt)
+- [ApiBoot Swagger](https://github.com/hengboy/api-boot/tree/master/api-boot-samples/api-boot-sample-swagger)
+- [ApiBoot Http Converter](https://github.com/hengboy/api-boot/tree/master/api-boot-samples/api-boot-sample-http-converter)
 
 ## 版本管理规范