Fix copy-paste error in README

Author: jethrogb

README.md

@@ -30,5 +30,5 @@ at your option.
 ### Contribution
 
 Unless you explicitly state otherwise, any contribution intentionally submitted
-for inclusion in Serde by you, as defined in the Apache-2.0 license, shall be
+for inclusion in cmake by you, as defined in the Apache-2.0 license, shall be
 dual licensed as above, without any additional terms or conditions.