set the port correctly

Now, we're cooking

src/Web/Catalog.WebForms/docker-compose.override.yml

@@ -11,6 +11,7 @@ services:
   catalog.api:
     environment:
       - ASPNETCORE_ENVIRONMENT=Development
+      - ASPNETCORE_URLS=http://0.0.0.0:5101
       - ConnectionString=Server=sql.data;Database=Microsoft.eShopOnContainers.Services.CatalogDb;User Id=sa;Password=Pass@word
       #- ExternalCatalogBaseUrl=http://13.88.8.119:5101   #Remote: VM Needs to have public access at 5105. 
       - ExternalCatalogBaseUrl=http://localhost:5101    #Local: You need to open your local dev-machine firewall at range 5100-5105.  at range 5100-5105.