Refactor wording

Author: wooorm

lib/index.js

@@ -36,10 +36,7 @@
  * @param {Source} source
  *   Info about source.
  * @param {undefined} self
- *   Nothing.
- *
- *   This is used by frameworks that have components (functions, classes).
- *   Those are not present in hast.
+ *   Nothing (this is used by frameworks that have components, we don’t).
  * @returns {JSX.Element}
  *   An element from your framework.
  *

readme.md

@@ -214,8 +214,7 @@ Create a development element (TypeScript type).
 *   `source` ([`Source`][source])
     — info about source
 *   `self` (`undefined`)
-    — nothing (this is used by frameworks that have components, those are not
-    present in hast)
+    — nothing (this is used by frameworks that have components, we don’t)
 
 ###### Returns