[Bug] Update API Proxy to Serverless - out of date content

[Rick-healy]

Description
In the 'API Proxy to serverless', section, you can't create Function apps in the portal as per the exercise suggests.

You need to create a Function and link to it .
I uploaded suggestion using consumption plan Function

API Management - Labs - functions suggestion.docx

Tasks

1. update lab to use a function just created, or share a pre-created one (if so add this