Add port mapping

Map port 8080 for ASP.NET Core.

Author: martincostello

docker/docker-compose-aspnetcore/docker-compose.yml

@@ -7,6 +7,8 @@ services:
     depends_on:
       - redis
       - mssql
+    ports:
+      - "8080:8080" # for OATs
   redis:
     image: redis:7.2
     ports: