Module 401: curl command is overly complex

[rddefauw]

In this module, the curl commands try to use the public DNS for the Cloud9 instance. However, some firewalls block the ports used in the example. It is easier to use localhost:8080 in the curl command.

[buzzsurfr]

This was reviewed in #364 and fixed in #392 to use this format below, since this the default FQDN projected inside of the Cloud9 IDE.

aws-workshop-for-kubernetes/04-path-security-and-networking/401-configmaps-and-secrets/readme.adoc

Line 280 in 87b8d5f

$ curl -k https://ENVIRONMENT_ID.vfs.cloud9.REGION_ID.amazonaws.com/api/v1/proxy/namespaces/default/services/app/