Fix typo

Reviewed-by: Christian Murphy <christian.murphy.42@gmail.com>
Reviewed-by: Titus Wormer <tituswormer@gmail.com>

Closes GH-26.

Author: Kerumen

readme.md

@@ -139,7 +139,7 @@ time.
 
 Use of `hast-to-hyperscript` can open you up to a
 [cross-site scripting (XSS)][xss] attack if the hast tree is unsafe.
-Use [`hast-util-santize`][sanitize] to make the hast tree safe.
+Use [`hast-util-sanitize`][sanitize] to make the hast tree safe.
 
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