use GitHub actions for build instead of Travis CI and Azure DevOps #210

Signed-off-by: Andre Bossert <anb0s@anbos.de>

.github/workflows/maven.yml

@@ -1,7 +1,7 @@
 # This workflow will build a Java project with Maven, and cache/restore any dependencies to improve the workflow execution time
 # For more information see: https://help.github.com/actions/language-and-framework-guides/building-and-testing-java-with-maven
 
-name: Java CI with Maven
+name: Maven
 
 on:
   push:

README.md

@@ -1,6 +1,6 @@
 <p align="center"><a href="https://anb0s.github.io/EasyShell"><img src="https://raw.githubusercontent.com/anb0s/EasyShell/main/platform/logo/horizontalversion.svg" alt="EasyShell" height="100px"></a></p>
 
-[![Version](https://img.shields.io/github/release/anb0s/EasyShell.svg)](https://github.com/anb0s/EasyShell/releases) [![Issues](https://img.shields.io/github/issues/anb0s/EasyShell.svg)](https://github.com/anb0s/EasyShell/issues) [![Chat @ gitter](https://badges.gitter.im/Join%20Chat.svg)](https://gitter.im/anb0s/Lobby) [![Build Status](https://app.travis-ci.com/anb0s/EasyShell.svg?branch=main)](https://app.travis-ci.com/anb0s/EasyShell) [![License](https://img.shields.io/badge/License-EPL%202.0-blue.svg)](https://www.eclipse.org/legal/epl-2.0)
+[![Version](https://img.shields.io/github/release/anb0s/EasyShell.svg)](https://github.com/anb0s/EasyShell/releases) [![Issues](https://img.shields.io/github/issues/anb0s/EasyShell.svg)](https://github.com/anb0s/EasyShell/issues) [![Chat @ gitter](https://badges.gitter.im/Join%20Chat.svg)](https://gitter.im/anb0s/Lobby) [![build](https://github.com/anb0s/EasyShell/actions/workflows/maven.yml/badge.svg)](https://github.com/anb0s/EasyShell/actions/workflows/maven.yml) [![License](https://img.shields.io/badge/License-EPL%202.0-blue.svg)](https://www.eclipse.org/legal/epl-2.0)
 
 This Eclipse plugin allows to open a shell window or file manager from the popup menu in the navigation tree or editor view. Additionally it is possible to run selected file in the shell, copy file or directory path or run user defined external tools. Key shortcuts and multiple selections are also supported!