doc: README.md with config example cmd

Author: ABouveron

README.md

@@ -1,2 +1,4 @@
 # Sources
-Original repo : https://github.com/keygen-sh/example-python-cryptographic-machine-files
+Original repo : https://github.com/keygen-sh/example-python-cryptographic-machine-files
+
+Example config : `python3 main.py --fingerprint '198e9fe586114844f6a4eaca5069b41a7ed43fb5a2df84892b69826d64573e39' --path-license examples/license.lic --path-machine examples/machine.lic`