docs: Change Build Status Badge [ci skip]

Author: MarcusNotheis

.github/workflows/nodejs.yml

@@ -1,4 +1,4 @@
-name: Node CI
+name: build
 
 on: [push]
 

README.md

@@ -1,8 +1,8 @@
 <a name="top"></a>
 # UI5 Web Components for React
 <p align="center">
-  <a href="https://travis-ci.org/SAP/ui5-webcomponents-react" target="_blank">
-    <img alt="Build Status" src="https://img.shields.io/travis/SAP/ui5-webcomponents-react/master.svg">
+  <a href="https://github.com/SAP/ui5-webcomponents-react/actions?query=workflow:%22build%22" target="_blank">
+    <img alt="Build Status" src="https://github.com/SAP/ui5-webcomponents-react/workflows/build/badge.svg?branch=master">
   </a>
   <a href="https://codecov.io/gh/SAP/ui5-webcomponents-react">
     <img src="https://codecov.io/gh/SAP/ui5-webcomponents-react/branch/master/graph/badge.svg" />