[DOC] Tutorial: Notifications-related documentation part is mentioned in Authentication

[meeroslaph]

Documentation issue

Notifications-related documentation part is mentioned in Authentication section:

refine/documentation/tutorial/ui-libraries/authentication/material-ui/react-router/index.md

Line 18 in 351ec87

Now we've refactored our application with Material UI, we only have one thing left to do: handle notifications. Refine triggers notification in various scenarios, such as when a record is created, updated, or deleted, when there is an error from your data provider or your auth provider. It's important to provide feedback to the user when interacting with the application.

Describe the thing to improve

It looks like the mentioned part should be either be removed or merged into the Notifications section.

Describe the solution (optional)

No response