docs: fix Offcanvas backdropClassName API description (react-bootstrap#6000)

nsi319 · web-flow · commit 91e2bcd7cec5 · 2021-08-26T17:09:52.000-07:00
diff --git a/src/Offcanvas.tsx b/src/Offcanvas.tsx
@@ -49,7 +49,7 @@ const propTypes = {
   backdrop: PropTypes.bool,
 
   /**
-   * Add an optional extra class name to .modal-backdrop.
+   * Add an optional extra class name to .offcanvas-backdrop.
    */
   backdropClassName: PropTypes.string,
 
