Update README

README.md

@@ -14,6 +14,7 @@ The main features are as follow:
 
 
 ** WARNING : Inexact uses recent algorithms not approved nor by NIST or NSA ! **
+** Don't use for anything other than experiments **
 
 ## Encryption principles
 
@@ -124,7 +125,9 @@ Variable encrypted message size (400 chars):
 
 ## Credits
 
-Inexact uses this libraries:
+Copyright © 2019 <ben@hackade.org>
+
+Inexact is released under CC0 licence, except for this externals libraries:
 
 - https://github.com/smuellerDD/chacha20_drng
 - https://github.com/floodyberry/curve25519-donna