diff --git a/index.js b/index.js
index e961c2c..6015796 100644
--- a/index.js
+++ b/index.js
@@ -1 +1,3 @@
+// Note: more types exposed from `index.d.ts`.
+// To do: refactor to include type parameters in JS.
 export {parseEntities} from './lib/index.js'