Fix typo

wooorm · wooorm · commit 178c9fd07b69 · 2016-11-25T09:50:00.000+01:00
diff --git a/readme.md b/readme.md
@@ -30,7 +30,7 @@ var doc = [
 ].join('\n');
 ```
 
-The defaults is to a target an age of 16:
+By default, the target age is 16:
 
 ```js
 retext()
