Fix documentation on options property in Select

Summary: Just updating the apparently copy-pasted comment about the `options` prop.

Reviewed By: passy

Differential Revision: D17567256

fbshipit-source-id: ed4ff93ad42ef8bdcadb5371fe11ae90dba47ca3

src/ui/components/Select.tsx

@@ -30,7 +30,7 @@ const SelectMenu = styled('select')((props: {grow?: boolean}) => ({
 export default class Select extends Component<{
   /** Additional className added to the element */
   className?: string;
-  /** Additional className added to the element */
+  /** The list of options to display */
   options: {
     [key: string]: string;
   };