typo fix (#3325)

* typo fix

There is an unnecessary period in the description under the default variant of data table.

* fix: format

Co-authored-by: Alison Joseph <alison.joseph@us.ibm.com>
Co-authored-by: kodiakhq[bot] <49736102+kodiakhq[bot]@users.noreply.github.com>

src/pages/components/data-table/usage.mdx

@@ -52,7 +52,7 @@ table display settings, and other utilities.
 
 | Variant          | Purpose                                                                                                                                                                                                                                |
 | ---------------- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
-| _Default_        | The default data table comes with a base style with only the title, header, and table elements. rows.                                                                                                                                  |
+| _Default_        | The default data table comes with a base style with only the title, header, and table elements rows.                                                                                                                                   |
 | _With selection_ | Batch actions are functions that may be performed on multiple items within a table. This variant of table enables the user to select individual rows and apply an action. A batch action toolbar appears when table rows are selected. |
 | _With expansion_ | The expandable data table is useful for presenting large amounts of data in a small space. Rows are collapsed and can be expanded to reveal extra information.                                                                         |