Update README.md

Author: jainishshah17

docker-app-chart/README.md

@@ -16,7 +16,7 @@
     *   REPO (String Parameter) : Artifactory Helm repo<Br>
         e.g. `REPO -> helm`
     *   CREDENTIALS (Credentials Parameter) : Artifactory Credential<Br>
-        e.g. `CREDENTIALS -> YES`
+        e.g. `CREDENTIALS -> artifactory-credentials`
 
 
 4.  Copy [Jenkinsfile](Jenkinsfile) to Pipeline Script.