If you don't want to keep the numbering in your table of contents, you can hide it. 💡And if necessary, manually insert numbering at the section and Topic titles. 

To hide the numbering of your table of contents, click on ⋮ then on Settings. Then click on Hide and then on OK.

<div><img src="https://blackhole.customerly.io/attachments/froala/images/ec144b3604a69c42e55880df74798f63.gif"></div>

You can remove the automatic numbering from your table of contents.

Hide the numbering of your agenda