Update HACK.md in accordance with
@@ -41,7 +41,8 @@ Now you can run the gateway as its own container via `docker run` and bind-mount
```
$ docker service rm func_gateway
-$ docker run --name func_gateway -v `pwd`/gateway/assets:/root/assets \
+$ docker run --name func_gateway -e "functions_provider_url=http://faas-swarm:8080/" \
+ -v `pwd`/gateway/assets:/home/app/assets \
-v "/var/run/docker.sock:/var/run/docker.sock" \
-p 8080:8080 --network=func_functions \
-d functions/gateway:latest-dev
