chore (Jenkinsfile): package and deploy

Jenkinsfile

@@ -16,7 +16,7 @@ pipeline {
             steps {
                 container('chart-testing'){
                     sh "mkdir target"
-                    sh "for dir in charts/*; do helm package --destination target \"\$dir\"; done"
+                    sh "for dir in charts/*; do helm package --destination target \"$dir\"; done"
                 }
             }
         }
@@ -29,7 +29,7 @@ pipeline {
                     }
                 }
                 container('alpine') {
-                    sh "for chart in target/*; do curl -L -u ${NEXUS_USER}:${NEXUS_PWD} http://registry.molgenis.org/repository/helm/ --upload-file \"\$chart\"; done"
+                    sh "for chart in target/*; do curl -L -u ${NEXUS_USER}:${NEXUS_PWD} http://registry.molgenis.org/repository/helm/ --upload-file \"$chart\"; done"
                 }
             }
         }