update build badge

README.md

@@ -1,4 +1,4 @@
-# Groceries [![Build Status](https://travis-ci.org/NativeScript/sample-Groceries.svg?branch=release)](https://travis-ci.org/NativeScript/sample-Groceries)
+# Groceries [![Build Status](https://travis-ci.org/NativeScript/sample-Groceries.svg?branch=master)](https://travis-ci.org/NativeScript/sample-Groceries)
 
 Groceries is a NativeScript-built iOS and Android app for managing grocery lists. You can learn how to build a version of this app from scratch using either our [JavaScript getting started guide](http://docs.nativescript.org/tutorial/chapter-0), or our [TypeScript and Angular getting started guide](http://docs.nativescript.org/angular/tutorial/ng-chapter-0).
 
@@ -112,4 +112,4 @@ The following is a list of all the people that have helped build Groceries. Than
 
 Cross-browser Testing Platform and Open Source Provided by [Sauce Labs](https://saucelabs.com).
 
-[<img alt="SauceLabs" src="assets/sauceLabs/SauceLabs-white.svg" width="200">](https://saucelabs.com)
+[<img alt="SauceLabs" src="assets/sauceLabs/SauceLabs-white.svg" width="200">](https://saucelabs.com)