Update best-practices.mdx (#1098)

Fixed typo in "Re-usable MRT Component" section

apps/material-react-table-docs/pages/docs/guides/best-practices.mdx

@@ -297,7 +297,7 @@ export const CustomMRTTable = <TData extends MRT_RowData>({
 
 By using the `TData` generic correctly, you can maintain type-safety in your re-usable component that will adapt to different types of data you will have throughout your application.
 
-Though, be aware that the weakness of this is approach is that it will be more annoying to get access to the `table` instance or read table state where you need it.
+Though, be aware that the weakness of this approach is that it will be more annoying to get access to the `table` instance or read table state where you need it.
 
 When re-using your MRT table component, it will just look something like this: