docs(helpers/list_tags): fix typo (#2215)

Signed-off-by: KentarouTakeda <[email protected]>

source/docs/helpers.md

@@ -681,7 +681,7 @@ Inserts a list of all tags.
 
 | Option | Description | Default |
 | ------------ | ----------------------------------------------------------------------------------------------------------------------- | ------- |
-| `orderby` | Order of categories | name |
+| `orderby` | Order of tags  | name |
 | `order` | Sort of order. `1`, `asc` for ascending; `-1`, `desc` for descending | 1 |
 | `show_count` | Display the number of posts for each tag | true |
 | `style` | Style to display the tag list. `list` displays tags in an unordered list. Use `false` or any other value to disable it. | list |