Add openssl command

Author: Ludwig Richter

README.md

@@ -4,3 +4,6 @@ Providing a template for a full server-state setup including authentication, ser
 ### Notes
 Remove the snake-oil certificate from the directory and use your own for a production environment! \
 If you testing your setup, import the given certificate [cert.pem](cert.pem) in your preferred test utility (browser, http pickers, etc.) or add an exception for this specific site [`https://localhost:4434`](https://localhost:4434/api/v1/all).
+
+Key and certificate generated with: \
+`openssl req -config openssl.cnf -new -x509 -sha256 -newkey rsa:2048 -nodes -keyout key.pem -days 365 -out cert.pem`