diff --git a/README.md b/README.md
index 2a870d8..a7d6605 100644
--- a/README.md
+++ b/README.md
@@ -3,3 +3,10 @@
 [![status-badge](https://ci.mylloon.fr/api/badges/71/status.svg)](https://ci.mylloon.fr/repos/71)
 
 Personal diary with txt style, can be private!
+
+## Environment Variables
+
+|     Name      |  Description  | Required |
+| :-----------: | :-----------: | :------: |
+| `TD_USERNAME` |   user name   |    No    |
+| `TD_USERPASS` | user password |   Yes    |