diff --git a/README.md b/README.md
index 4dc9013..060f2af 100644
--- a/README.md
+++ b/README.md
@@ -18,6 +18,17 @@ Note that the license also inherits to the output.
 - `src` *.yaml files should be written according to the [v3.0/schema.json](https://raw.githubusercontent.com/OAI/OpenAPI-Specification/main/schemas/v3.0/schema.json)
 - `dist` Do not rewrite this file as it is an automatically generated OpenAPI file.
 
+### About build
+
+- `src/openapi/**/*.yaml#/paths/*/get/parameters` will be overwritten by `src/config/parameters.yaml#/paths/~1parameters/get/parameters`
+- `src/openapi/**/*.yaml#/paths/*/get/responses/200/headers` will be overwritten by `src/config/headers.yaml#/components/headers`
+
+```shell
+python -V # Python 3.10.8
+pip install -r requirements.txt
+python tools/build.py
+```
+
 ## License
 
 [agpl-3.0](./LICENSE.txt)