Add matrix and button

Author: Ninerian

.github/workflows/ci.yml

@@ -1,7 +1,7 @@
 # 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: Java CI with Maven
+name: Continous Integration
 
 on:
   push:
@@ -11,14 +11,20 @@ on:
 
 jobs:
   build-test:
-    runs-on: ubuntu-latest
-
+    runs-on: ubuntu-20.04
+    name: Java ${{ matrix.java }} Test
+    strategy:
+      matrix:
+        # test against latest update of each major Java version, as well as specific updates of LTS versions:
+        java: [ 8, 10, 11, 12, 13 ]
     steps:
     - uses: actions/checkout@v2
+
     - name: Set up JDK 1.8
       uses: actions/setup-java@v1
       with:
-        java-version: 1.8
+        java-version: ${{ matrix.java }}
+
     - name: Build with Maven
       run: mvn -B package --file pom.xml
 
@@ -28,7 +34,7 @@ jobs:
   continuous-delivery:
     if: github.ref == 'refs/heads/dev' || github.ref == 'refs/heads/master' || startsWith(github.ref, 'refs/tags/')
     needs: build-test
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-20.04
 
     steps:
     - name: Check out Git repository

README.md

@@ -1,3 +1,5 @@
+[![Build Status](https://github.com/Staffbase/plugins-sdk-java/workflows/Continous%20Integration/badge.svg)](https://github.com/Staffbase/plugins-sdk-java/actions)
+
 # Plugin SDK for Java
 
 If you are developing your own plugin for your Staffbase app we describe the authentication flow of a plugin at https://developers.staffbase.com/guide/customplugin-overview/. While this documentation just covers the conceptual ideas of the interface of plugins though – the so called Plugin SSO – we want to provide a library to help you develop your first plugin for Staffbase even faster. This SDK provides the basic functionality to parse and verify a provided token for Java.