Update README.md

Author: domoritz

README.md

@@ -1,6 +1,6 @@
 # typescript-json-schema
 
-[![npm version](https://img.shields.io/npm/v/typescript-json-schema.svg)](https://www.npmjs.com/package/typescript-json-schema) [![Build Status](https://travis-ci.org/YousefED/typescript-json-schema.svg?branch=master)](https://travis-ci.org/YousefED/typescript-json-schema)
+[![npm version](https://img.shields.io/npm/v/typescript-json-schema.svg)](https://www.npmjs.com/package/typescript-json-schema) ![Test](https://github.com/YousefED/typescript-json-schema/workflows/Test/badge.svg)
 
 Generate json-schemas from your Typescript sources.