Update src/plugin-slots/EditFileErrorAlertsSlot/README.md

Co-authored-by: Braden MacDonald <[email protected]>

Author: xitij2000

src/plugin-slots/EditFileErrorAlertsSlot/README.md

@@ -14,7 +14,7 @@ This slot is used to add alerts to the course file edit page.
 ### Additional Alert on Videos Page
 ![🍞 in breadcrumbs slot](./screenshot_videos_alert_added.png)
 
-The following `env.config.jsx` will wrap the files component with a div that has a large red dashed redborder.
+The following `env.config.jsx` will display an additional custom alert on the files and uploads page.
 
 ```js
 import { DIRECT_PLUGIN, PLUGIN_OPERATIONS } from '@openedx/frontend-plugin-framework';