docs: be sure to update hash secret and token secret

Author: CodeF0x

readme.md

@@ -38,6 +38,8 @@ cargo build --release
 ```
 There are some default values set in the .env file, you can adjust them as you wish.
 Keep in mind to change the code as well.
+> ⚠️ Be sure to update both `HASH_SECRET` and `JWT_SECRET` to something cryptographically safe! 
+
 
 You can also launch it in a screen or in a container, so it runs without an active shell session.