Update snippet formatting

snippets/DataTable.md

@@ -9,7 +9,7 @@ Renders a table with rows dynamically created from an array of primitives.
 - Use `Array.prototype.map` to render every item in `data` as a `<tr>` element, consisting of its index and value, give it a `key` produced from the concatenation of the two.
 
 ```jsx
-function DataTable({ data }) {
+const DataTable = ({ data }) => {
   return (
     <table>
       <thead>
@@ -28,7 +28,7 @@ function DataTable({ data }) {
       </tbody>
     </table>
   );
-}
+};
 ```
 
 ```jsx