Fix Travis CI link

Author: TomoyukiAota

README.md

@@ -90,7 +90,7 @@ Note that you can't use Electron or NodeJS native libraries in this case. Please
 - Angular 7 & Electron 3 : (master)
 
 [build-badge]: https://travis-ci.org/maximegris/angular-electron.svg?branch=master
-[build]: https://travis-ci.org/maximegris/angular-electron.svg?branch=master
+[build]: https://travis-ci.org/maximegris/angular-electron
 [dependencyci-badge]: https://dependencyci.com/github/maximegris/angular-electron/badge
 [dependencyci]: https://dependencyci.com/github/maximegris/angular-electron
 [license-badge]: https://img.shields.io/badge/license-Apache2-blue.svg?style=flat