diff --git a/README.md b/README.md
index 1f4b7e5..37dcf82 100644
--- a/README.md
+++ b/README.md
@@ -2,7 +2,16 @@
 
 simple file server
 
+### .env example
+```
+FILES_DIR="./files"
+API_KEY="aboba"
+FILES_PADDING="5"
+DATABASE_NAME="files.db"
+```
+
 - [x]  get/post files
 - [x]  security from dublicats
 - [ ]  security, using tokens
 - [ ]  works in docker 
+