added info for local proxy

.devcontainer/compose.yml

@@ -18,12 +18,14 @@ services:
       - ./.vscode-server:/home/node/.vscode-server/:cached
       - ${SSH_AUTH_SOCK}:/.ssh/ssh-agent.sock
     networks:
+      # needed for local proxy see https://git.rwth-aachen.de/rpdm/devlef/devcontainers/traefik
       # - proxy-net
       - default
 
 networks:
   default:
     driver: bridge
+#  needed for local proxy see https://git.rwth-aachen.de/rpdm/devlef/devcontainers/traefik
 #  proxy-net:
 #    external: true
 #    name: proxy-net