chore(compose-multiframework): add more comments

Author: eahefnawy

compose-multiframework/serverless-compose.yml

@@ -7,13 +7,14 @@
 # Deployments happen in parallel by default. You can also share outputs from one Service to another, across template types.
 # In this case, Compose will auto-determine the correct order to deploy each Service.
 
+# Example stage-specific parameters you might need in your services.
 stages:
   default:
     params:
-      domain: "serverless.dev"
+      domain: "dev-api.acmeinc.com" # This is the value of the "domain" param in the dev stage
   prod:
     params:
-      domain: "serverless.com"
+      domain: "prod-api.acmeinc.com" # This is the value of the "domain" param in the prod stage
 
 services:
   # Framework: AWS CloudFormation