Update snippet descriptions & tags

snippets/capitalize.md

@@ -5,7 +5,8 @@ tags: string,intermediate
 
 Capitalizes the first letter of a string.
 
-- Use array destructuring and `String.prototype.toUpperCase()` to capitalize first letter, `...rest` to get array of characters after first letter and then `Array.prototype.join('')` to make it a string again.
+- Use array destructuring and `String.prototype.toUpperCase()` to capitalize the first letter of the string.
+- Use `Array.prototype.join('')` to combine the capitalized `first` with the `...rest` of the characters.
 - Omit the `lowerRest` parameter to keep the rest of the string intact, or set it to `true` to convert to lowercase.
 
 ```js