Fix another contributing link in readme.md

Author: fnlctrl

README.md

@@ -46,7 +46,7 @@ Please make sure to read the [Issue Reporting Checklist](https://github.com/vuej
 
 ## Contribution
 
-Please make sure to read the [Contributing Guide](https://github.com/vuejs/vue/blob/dev/CONTRIBUTING.md) before making a pull request.
+Please make sure to read the [Contributing Guide](https://github.com/vuejs/vue/blob/dev/.github/CONTRIBUTING.md) before making a pull request.
 
 ## Changelog