fix: export createLanguage

Author: ClaudiuCeia

mod.ts

@@ -1,4 +1,5 @@
 export * from "./src/Parser.ts";
 export * from "./src/combinators.ts";
 export * from "./src/parsers.ts";
-export * from "./src/utility.ts";
+export * from "./src/utility.ts";
+export * from "./src/language.ts";