modify Jenkins ver 1.2

Jenkinsfile

@@ -20,8 +20,10 @@ pipeline {
                 echo 'Hello world!' 
             }
         }
+
         stage('Get data save artifacts') {
             steps {
+                sh 'chmod +x -R ./data_prep.sh'
                 withEnv(["KAGGLE_USERNAME=${params.KAGGLE_USERNAME}",
                 "KAGGLE_KEY=${params.KAGGLE_KEY}" ]) {
                     sh 'echo KAGGLE_USERNAME: $KAGGLE_USERNAME'