diff --git a/README.md b/README.md
index b7efaa8..971f907 100644
--- a/README.md
+++ b/README.md
@@ -1,4 +1,4 @@
-#docker-dehydrated
+# docker-dehydrated
 
 This is a docker container that wraps around [dehydrated](https://github.com/lukas2511/dehydrated).
 
@@ -6,5 +6,13 @@ This is a docker container that wraps around [dehydrated](https://github.com/luk
 
 The following environment variables can be set to influence the container's behaviour:
 
-- $ENDPOINT which ACME-Endpoint you want to use, supported values: "staging", "production" (default).
-- $CHALLENGE what type of challenge should be used, supported values: "http-01" (default), "dns-01"
+- `$ENDPOINT` which ACME-Endpoint you want to use, supported values: "staging", "production" (default).
+- `$CHALLENGE` what type of challenge should be used, supported values: "http-01" (default), "dns-01"
+
+If the environment variables were not explicitely set, no modification to the configuration file is made
+
+## Behaviour on startup
+
+When the container is started, a script is run which looks for the configuration file in the places supported by dehydrated,
+and if no configuration file is found, it will copy the [example configuration file](https://github.com/lukas2511/dehydrated/docs/examples/config)
+into `/etc/dehydrated/config`.