Update 'jenkinsfile'

jenkinsfile

@@ -1,17 +1,21 @@
 pipeline {
     agent any
+
     stages {
         stage('Build') {
             steps {
-        sh 'cargo build'
+                echo 'Building..'
             }
         }
-
         stage('Test') {
             steps {
-        sh 'cargo test'
+                echo 'Testing..'
+            }
+        }
+        stage('Deploy') {
+            steps {
+                echo 'Deploying....'
             }
         }
-
     }
 }