Added publish script

Jenkinsfile

@@ -8,5 +8,13 @@ pipeline {
       }
     }
 
+    stage('Publish') {
+      steps {
+        sh '"docker stack rm worldcraftdiscordbot"'
+        sh '"docker stack deploy worldcraftdiscordbot"'
+        sh '"docker service update worldcraftdiscordbot --image worldcraftdiscordbot:v${env.BUILD_ID}"'
+      }
+    }
+
   }
 }