add build and deploy steps

Jenkinsfile

@@ -1,10 +1,15 @@
 pipeline {
     agent any
-
     stages {
-        stage('Do nothing') {
-            steps {
-                sh '/bin/true'
+        stage('build'){
+            steps{
+                sh 'npm install'
+                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: 'ssh-uploads/movie-explorer', remoteDirectorySDF: false, removePrefix: '', sourceFiles: 'dist/**')], usePromotionTimestamp: false, useWorkspaceInPromotion: false, verbose: false)])
             }
         }
     }