Change readme

README.md

@@ -35,7 +35,7 @@ $ docker-compose up -d
 ![dashboard](https://user-images.githubusercontent.com/19553554/78956965-8b9c6180-7b16-11ea-9747-6ed5e62b068d.png)
 
 ## Upgrading
-If upgrade `version<1.4.0` to `v1.4.0`, follow the operating instructions in [v1.4.0](https://github.com/didi/nightingale/releases/tag/v1.4.0) release
+If upgrade `version<1.4.0` to `v1.4.0`, follow the operating instructions in [v1.4.0](https://github.com/didi/nightingale/releases/tag/V1.4.0) release
 
 
 ## Team

README_ZH.md

@@ -35,7 +35,7 @@ $ docker-compose up -d
 ![dashboard](https://user-images.githubusercontent.com/19553554/78956965-8b9c6180-7b16-11ea-9747-6ed5e62b068d.png)
 
 ## 版本升级
-如果需要从 `v1.4.0` 之前的版本升级到 `v1.4.0` , 按照 [v1.4.0](https://github.com/didi/nightingale/releases/tag/v1.4.0) release 说明操作即可
+如果需要从 `v1.4.0` 之前的版本升级到 `v1.4.0` , 按照 [v1.4.0](https://github.com/didi/nightingale/releases/tag/V1.4.0) release 说明操作即可
 
 ## 团队