#3: Add GitHub actions configuration and Badge.

.github/workflows/maven.yml

@@ -0,0 +1,18 @@
+name: github
+
+on: [push]
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+
+    - uses: actions/checkout@v2
+
+    - name: Set up JDK 1.8
+      uses: actions/setup-java@v1
+      with:
+        java-version: 1.8
+
+    - name: Build with Maven
+      run: mvn -B install --no-transfer-progress --file pom.xml

README.md

@@ -1,5 +1,6 @@
 [![][reedelk-logo]][reedelk-url]
 
+[![Build Status](https://github.com/codecentric/reedelk-runtime/workflows/github/badge.svg)](https://github.com/codecentric/reedelk-runtime/actions)
 [![License](https://img.shields.io/badge/License-Apache%202.0-blue.svg)](https://github.com/reedelk/reedelk-runtime/blob/master/LICENSE)
 [![Twitter](https://img.shields.io/twitter/follow/reedelk.svg?style=social&label=Follow)](https://twitter.com/intent/follow?screen_name=reedelk)
 # Reedelk Runtime Platform (Community Edition)