diff --git a/README.md b/README.md
index f2f6c7b..51b9152 100644
--- a/README.md
+++ b/README.md
@@ -1,3 +1,22 @@
 # dotfiles
 
 My dot files managed by ChezMoi (https://github.com/twpayne/chezmoi)
+
+Configuration file *~/config/chezmoi/chezmoi.toml*
+
+```toml
+[data]
+  git_email = ""
+  git_alias = ""
+  projectdir = ""
+  java6_version = ""
+  java7_version = ""
+  java8_version = ""
+  java11_version = ""
+  deploydir = ""
+  java_truststore_file = ""
+  java_truststore_password = ""
+  extra_ca_cert = ""
+  docker_compose_command = "/usr/bin/docker compose"
+```
+