diff --git a/README.md b/README.md
index 6c0f20c..e5a7c3c 100644
--- a/README.md
+++ b/README.md
@@ -9,15 +9,17 @@ docker run -v $(pwd)/build:/app/build -e GITHUB_TOKEN=YOUR_GITHUB_TOKEN registry
 
 ## Environment Variables
 
-| Environment Variable     | Description                                                |
-| ------------------------ | ---------------------------------------------------------- |
-| `GITHUB_TOKEN`           | Github token to use for downloading patches.               |
+| Environment Variable | Description                                  |
+| -------------------- | -------------------------------------------- |
+| `GITHUB_TOKEN`       | Github token to use for downloading patches. |
 
 ## Volumes
 
-| Volume       | Description                                     |
-| ------------ | ----------------------------------------------- |
-| `/app/build` | The build directory (should contain a keystore) |
+| Volume              | Description             |
+| ------------------- | ----------------------- |
+| `/app/build`        | Build directory         |
+| `/app/config.toml`  | Config file (optional)  |
+| `/app/options.json` | Options file (optional) |
 
 ## Notes