Update file README.md

README.md

@@ -4,7 +4,7 @@ Authors: [Adrien Jayat](https://gitlab.unistra.fr/jayat)
 
 A chess game in C++ with a colorful CLI.
 
-Implements all the rules defined by the Internal Chess Federation.
+Implements all the rules defined by the International Chess Federation.
 
 ## Get Started