chore(docker): share the config file between host and container

README.md

@@ -88,6 +88,7 @@ Following command can be used to run a container which is built from the [Docker
 ```sh
 $ docker run --rm -d \
   -v "$(pwd)/upload/":/app/upload \
+  -v "$(pwd)/config.toml":/app/config.toml \
   --env-file "$(pwd)/.env" \
   -e "RUST_LOG=debug" \
   -p 8000:8000 \

docker-compose.yml

@@ -13,3 +13,4 @@ services:
       - "8000:8000"
     volumes:
       - ./upload/:/app/upload
+      - ./config.toml:/app/config.toml