Add JSDoc based types

.gitignore

@@ -2,6 +2,7 @@ coverage/
 node_modules/
 /lib/
 /index.js
+*.d.ts
 *.log
 .DS_Store
 yarn.lock

dev/index.js

@@ -1 +1,10 @@
+/**
+ * @typedef {import('./lib/index.js').Value} Value
+ * @typedef {import('./lib/index.js').Encoding} Encoding
+ * @typedef {import('./lib/index.js').Options} Options
+ * @typedef {import('./lib/index.js').Extension} Extension
+ * @typedef {import('./lib/index.js').Handle} Handle
+ * @typedef {import('./lib/index.js').Transform} Transform
+ */
+
 export {fromMarkdown} from './lib/index.js'