Update snippet formatting

snippets/DataList.md

@@ -10,10 +10,10 @@ Renders a list of elements from an array of primitives.
 - Omit the `isOrdered` prop to render a `<ul>` list by default.
 
 ```jsx
-function DataList({ isOrdered, data }) {
+const DataList = ({ isOrdered, data }) => {
   const list = data.map((val, i) => <li key={`${i}_${val}`}>{val}</li>);
   return isOrdered ? <ol>{list}</ol> : <ul>{list}</ul>;
-}
+};
 ```
 
 ```jsx