Fix typos

snippets/sortCharactersInString.md

@@ -10,7 +10,7 @@ lastUpdated: 2020-10-22T20:24:30+03:00
 Alphabetically sorts the characters in a string.
 
 - Use the spread operator (`...`), `Array.prototype.sort()` and  `String.prototype.localeCompare()` to sort the characters in `str`.
-- Recombine using `String.prototype.join()`.
+- Recombine using `Array.prototype.join()`.
 
 ```js
 const sortCharactersInString = str =>