diff --git a/README.md b/README.md
index 85b5b23..a78b2f9 100644
--- a/README.md
+++ b/README.md
@@ -6,6 +6,14 @@ python install poetry
 poetry install
 ```
 
+# Provide a config.toml file at the root of the project
+```
+homeserver = "<your matrix server https://matrix.…>"
+
+bot_username = "<your username someone@beta.gouv.fr>"
+bot_password = "<your password>"
+```
+
 # Build Release
 ```
 docker build --target=runtime . -t matrix-bot-admin