diff --git a/README.md b/README.md
index c0706c8..1f8e754 100644
--- a/README.md
+++ b/README.md
@@ -29,13 +29,33 @@ Please see [the documentation of Modal](https://modal.com/docs/guide) for modals
 To use the script, execute the below.
 
 1. git clone the repository.
-2. Create the `.env` file and set a huggingface API token and a model with reference to `.env.example`.
-3. Open the Makefile and set prompts.
-4. Execute `make deploy` command. An application will be deployed to Modal by the command.
-5. Execute `make run` command.
+2. Create the `./setup_files/.env` file and set a huggingface API token with reference to `./setup_files/.env.example`.
+3. Copy `./setup_files/config.sample.yml` to `./setup_files/config.yml`
+4. Open the Makefile and set prompts.
+5. Execute `make deploy` command. An application will be deployed to Modal.
+6. Execute `make run` command.
 
 Images are generated and output to the `outputs/` directory.
 
+## Directory structure
+
+```
+.
+├── Makefile
+├── README.md
+├── sdcli/                  # A directory with scripts to run inference.
+│   ├── __init__.py
+│   ├── outputs/                # Images are outputted this directory.
+│   ├── txt2img.py              # A script to run txt2img inference.
+│   └── util.py
+└── setup_files/            # A directory with config files.
+    ├── .env                    # Secrets manager
+    ├── Dockerfile              # To build a base image.
+    ├── config.yml              # To set a model, vae and some tools.
+    ├── requirements.txt
+    └── setup.py                # Build an application to deploy on Modal.
+```
+
 Thank you.
 
 ## Author