Fix license description.

thejpster · thejpster · commit 1764dbe159a1 · 2018-05-07T13:32:41.000+01:00
diff --git a/Cargo.toml b/Cargo.toml
@@ -3,6 +3,6 @@ name = "menu"
 version = "0.1.0"
 authors = ["Jonathan 'theJPster' Pallant <github@thejpster.org.uk>"]
 description = "A simple #[no_std] command line interface."
-license = "MIT or Apache 2"
+license = "MIT OR Apache-2.0"
 
 [dependencies]
