Merge pull request aws-samples#469 from rddefauw/task/303-app-update-docs

Doc updates for app update chapter

Author: ckassen

03-path-application-development/303-app-update/readme.adoc

@@ -16,7 +16,9 @@ For our usecase, the application initially uses the image `arungupta/app-upgrade
 
 In order to perform exercises in this chapter, you’ll need to deploy configurations to a Kubernetes cluster. To create an EKS-based Kubernetes cluster, use the link:../../01-path-basics/102-your-first-cluster#create-a-kubernetes-cluster-with-eks[AWS CLI] (recommended). If you wish to create a Kubernetes cluster without EKS, you can instead use link:../../01-path-basics/102-your-first-cluster#alternative-create-a-kubernetes-cluster-with-kops[kops].
 
-All configuration files for this chapter are in the `app-udpate` directory. Make sure you change to that directory before giving any commands in this chapter.
+All configuration files for this chapter are in the `app-update` directory. Make sure you change to that directory before giving any commands in this chapter.  If you are working in Cloud9, run:
+
+    cd ~/environment/aws-workshop-for-kubernetes/03-path-application-development/303-app-update/
 
 == Update and Rollback