Add improved docs

Author: wooorm

lib/index.js

@@ -20,8 +20,18 @@
  * @property {boolean} hyperscript
  *
  * @typedef Options
+ *   Configuration (optional).
  * @property {string|null} [prefix]
+ *   Prefix to use as a prefix for keys passed in `props` to `h()`, this
+ *   behavior is turned off by passing `false` and turned on by passing a
+ *   `string`.
+ *   By default, `h-` is used as a prefix if the given `h` is detected as being
+ *   `virtual-dom/h` or `React.createElement`
  * @property {'html'|'svg'} [space]
+ *   Whether `node` is in the `'html'` or `'svg'` space.
+ *   If an `<svg>` element is found when inside the HTML space, `toH`
+ *   automatically switches to the SVG space when entering the element, and
+ *   switches back when exiting.
  */
 
 import {html, svg, find, hastToReact} from 'property-information'
@@ -37,8 +47,11 @@ const own = {}.hasOwnProperty
 /**
  * @template {CreateElementLike} H
  * @param {H} h
+ *   HyperScript function.
  * @param {Node} tree
+ *   Tree to transform.
  * @param {string|boolean|Options} [options]
+ *   Configuration (optional).
  * @returns {ReturnType<H>}
  */
 // eslint-disable-next-line complexity