readme: link Build badge to Github Actions

Author: kartojal

README.md

@@ -1,5 +1,5 @@
 [![License: AGPL v3](https://img.shields.io/badge/License-AGPL%20v3-blue.svg)](https://www.gnu.org/licenses/agpl-3.0)
-![Build pass](https://github.com/AAVE/protocol-v2/actions/workflows/node.js.yml/badge.svg)
+[![Build pass](https://github.com/AAVE/protocol-v2/actions/workflows/node.js.yml/badge.svg)](https://github.com/aave/protocol-v2/actions/workflows/node.js.yml)
 ```
         .///.                .///.     //.            .//  `/////////////-
        `++:++`              .++:++`    :++`          `++:  `++:......---.`