Merge pull request #7 from evolvedbinary/feat/github-action

[feat] Use GitHub action

.github/workflows/ci.yml

@@ -0,0 +1,14 @@
+name: Build
+on: [push, pull_request]
+jobs:
+  build:
+    runs-on: macos-latest
+    steps:
+      - uses: actions/checkout@v3
+      - name: Set up JDK 8
+        uses: actions/setup-java@v3
+        with:
+          java-version: '8'
+          distribution: 'temurin'
+      - name: Build with Maven
+        run: mvn clean test

README.md

@@ -1,5 +1,5 @@
 # TEI Completer
-[![Build Status](https://travis-ci.org/BCDH/TEI-Completer.png?branch=master)](https://travis-ci.org/BCDH/TEI-Completer) [![Java 8+](https://img.shields.io/badge/java-8+-4c7e9f.svg)](http://java.oracle.com) [![License GPL 2](https://img.shields.io/badge/license-GPL%202-blue.svg)](https://www.gnu.org/licenses/gpl-2.0.html) [![Download](https://img.shields.io/badge/download-version%201.2.0-ff69b4.svg)](https://repo1.maven.org/maven2/org/humanistika/oxygen/tei-completer/1.2.0/tei-completer-1.2.0-oxygen-plugin.jar)
+[![Build Status](https://github.com/BCDH/TEI-Completer/actions/workflows/ci.yml/badge.svg)](https://github.com/BCDH/TEI-Completer/actions/workflows/ci.yml) [![Java 8+](https://img.shields.io/badge/java-8+-4c7e9f.svg)](http://java.oracle.com) [![License GPL 2](https://img.shields.io/badge/license-GPL%202-blue.svg)](https://www.gnu.org/licenses/gpl-2.0.html) [![Download](https://img.shields.io/badge/download-version%201.2.0-ff69b4.svg)](https://repo1.maven.org/maven2/org/humanistika/oxygen/tei-completer/1.2.0/tei-completer-1.2.0-oxygen-plugin.jar)
 
 The TEI Completer is a highly customizable plugin for setting up and activating remote-driven autocompletions of attribute values in the [oXygen XML Editor](http://www.oxygenxml.com).