Update snippet descriptions

snippets/words.md

@@ -5,12 +5,13 @@ tags: string,regexp,intermediate
 
 Converts a given string into an array of words.
 
-- Use `String.prototype.split()` with a supplied pattern (defaults to non-alpha as a regexp) to convert to an array of strings.
+- Use `String.prototype.split()` with a supplied `pattern` (defaults to non-alpha as a regexp) to convert to an array of strings.
 - Use `Array.prototype.filter()` to remove any empty strings.
-- Omit the second argument to use the default regexp.
+- Omit the second argument, `pattern`, to use the default regexp.
 
 ```js
-const words = (str, pattern = /[^a-zA-Z-]+/) => str.split(pattern).filter(Boolean);
+const words = (str, pattern = /[^a-zA-Z-]+/) =>
+  str.split(pattern).filter(Boolean);
 ```
 
 ```js