Add export of Runtime type

Author: wooorm

index.js

@@ -1,8 +1,9 @@
 /**
- * @typedef {import('./lib/index.js').Node} Node
  * @typedef {import('./lib/index.js').Options} Options
+ * @typedef {import('./lib/index.js').Runtime} Runtime
  *
  * @typedef {Options} BuildJsxOptions
+ *   To do: remove next major (replaced by `Options` ).
  */
 
 export {buildJsx} from './lib/index.js'

readme.md

@@ -234,7 +234,7 @@ Some differences:
 ## Types
 
 This package is fully typed with [TypeScript][].
-It exports the additional type `Options`.
+It exports the additional type `Options` and `Runtime`.
 
 ## Compatibility