Update README.md

Jenkinsfile

@@ -0,0 +1,41 @@
+pipeline {
+  agent any
+  stages {
+    stage('build') {
+      steps {
+        echo 'this is the build job'
+        sh 'mvn compile'
+      }
+    }
+
+    stage('Test') {
+      steps {
+        echo 'this is the test job'
+        sh 'mvn clean test'
+      }
+    }
+
+    stage('Package') {
+      steps {
+        echo 'this is the package job'
+        sh 'mvn package -DskipTests'
+      }
+    }
+
+    stage('Archive') {
+      steps {
+        archiveArtifacts '**/target/*.jar'
+      }
+    }
+
+  }
+  tools {
+    maven 'Maven 3.9.2'
+  }
+  post {
+    always {
+      echo 'this pipeline has completed...'
+    }
+
+  }
+}