docs: add role prop

Author: dmbln34

docs/docs/options.mdx

@@ -130,3 +130,4 @@ import { Tooltip } from 'react-tooltip';
 | `opacity`               | CSS opacity                            | no       | `0.9`                     | a CSS opacity value                                                                                                               | Change the opacity of the tooltip                                                                                                                               |
 | `arrowColor`            | CSS color                              | no       |                           | a CSS background color                                                                                                            | Change color of the tooltip arrow                                                                                                                               |
 | `disableStyleInjection` | `boolean` or `'core'`                  | no       | `false`                   | `true` `false` `'core'`                                                                                                           | Whether to disable automatic style injection. Do not set dynamically. Check the [styling page](./examples/styling#disabling-reacttooltip-css) for more details  |
+| `role`                  | `'tooltip'` or `'dialog'`              | no       | `tooltip`                 | `'tooltip'` `'dialog'`                                                                                                            | Set ARIA role, either `tooltip` or `dialog` if the tooltip should contain focusable elements                                                                    |