add build and deploy steps

Jenkinsfile

@@ -2,9 +2,30 @@ pipeline {
     agent any
 
     stages {
-        stage('Do nothing') {
+        stage('build'){
             steps{
-                sh '/bin/true'
+                sh 'npm run build'
+            }
+        }
+        stage('deploy'){
+            steps{
+                sshPublisher(publishers: [sshPublisherDesc(configName: 'Demos',
+                transfers: [sshTransfer(cleanRemote: false,
+                excludes: '',
+                execCommand: '',
+                execTimeout: 120000,
+                flatten: false,
+                makeEmptyDirs: false,
+                noDefaultExcludes: false,
+                patternSeparator: '[,
+                ]+',
+                remoteDirectory: '/home/jenkins/ssh-uploads/calculator',
+                remoteDirectorySDF: false,
+                removePrefix: '',
+                sourceFiles: 'dist')],
+                usePromotionTimestamp: false,
+                useWorkspaceInPromotion: false,
+                verbose: false)])
             }
         }
     }