add github action for CI

.github/workflows/maven.yml

@@ -0,0 +1,31 @@
+# This workflow will build a Java project with Maven
+# For more information see: https://help.github.com/actions/language-and-framework-guides/building-and-testing-java-with-maven
+
+name: build
+
+on: [push, pull_request]
+
+jobs:
+  build:
+
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        java: ['1.8','11']
+
+    steps:
+    - uses: actions/checkout@v2
+    - name: Set up JDK ${{matrix.java}}
+      uses: actions/setup-java@v1
+      with:
+        java-version: ${{matrix.java}}
+    - name: Maven -v
+      run: mvn -v
+    - name: Cache Maven packages
+      uses: actions/cache@v2
+      with:
+        path: ~/.m2
+        key: ${{ runner.os }}-m2-${{ hashFiles('**/pom.xml') }}
+        restore-keys: ${{ runner.os }}-m2
+    - name: Build with Maven
+      run: mvn -B package --file pom.xml

README.md

@@ -1,4 +1,4 @@
-[![Build Status](https://api.travis-ci.org/danfickle/openhtmltopdf.svg?branch=open-dev-v1)](https://travis-ci.org/danfickle/openhtmltopdf)
+[![build](https://github.com/danfickle/openhtmltopdf/workflows/build/badge.svg)](https://github.com/danfickle/openhtmltopdf/actions?query=workflow%3Abuild)
 
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