Update README.md (#512)

Author: dgarcia360

README.md

@@ -1,7 +1,7 @@
 # Symbol SDK for TypeScript and JavaScript
 
 [![npm version](https://badge.fury.io/js/symbol-sdk.svg)](https://badge.fury.io/js/symbol-sdk)
-[![Build Status](https://api.travis-ci.org/nemtech/symbol-sdk-typescript-javascript.svg?branch=master)](https://travis-ci.org/nemtech/symbol-sdk-typescript-javascript)
+[![Build Status](https://api.travis-ci.com/nemtech/symbol-sdk-typescript-javascript.svg?branch=master)](https://travis-ci.com/nemtech/symbol-sdk-typescript-javascript)
 [![Coverage Status](https://coveralls.io/repos/github/nemtech/symbol-sdk-typescript-javascript/badge.svg)](https://coveralls.io/github/nemtech/symbol-sdk-typescript-javascript?branch=travis-ci)
 [![License](https://img.shields.io/badge/License-Apache%202.0-blue.svg)](https://opensource.org/licenses/Apache-2.0)