update jenkinsfle

Jenkinsfile

@@ -9,13 +9,15 @@ node {
 
     try {
         stage('Clone target repo') {
+             sh "echo 'clone start'"
              checkout([$class: 'GitSCM'],
              doGenerateSubmoduleConfigurations: false, extensions: [], submoduleCfg: [],
              userRemoteConfigs: [[url: 'http://gogsb.soaringnova.com/liutao/ai-proj-demo.git']])
+             sh "echo 'clone stop'"
         }
 
         stage('Build image') {
-            sh "echo build image"
+            sh "echo 'build image'"
             sh "make dev image-dev=${imageDev}"
             // sh "make package package-image=${packageImage}"
         }