Create a table of contents block

[Nemzag]

Ħêllo,
in my Web‑Dev projects I like to have a table content in a page.
I use pro that TocBot.
I would like to have in GutenBorg an identical system, « T.O.C. Block »
Please do it…

Is your feature request related to a problem? Please describe.
No

Describe the solution you'd like
Not applicable.

Describe alternatives you've considered
In TocBot we need to use ID pro links in table of content to work,
so it would be great if gutenberg added automatically id="",
to achieve this.
and in titles Title_n°? : to access table of content block in start of the page, just under in <main>.

Exemple

<main id="main" class="ui container">

	<article id="article">

		<section id="#section-table-of-contents">
			<fieldset>
				<legend><h2 id="title-h2-table-of-contents"><a href="?#title-h2-table-of-contents">Table de's matière's :</a>
					</h2></legend>

				<div id="js-toc" class="js-toc"></div>
			</fieldset>
		</section>

[draganescu]

Should core include a ToC block?

[Nemzag]

Da, of course Draganescu.

[talldan]

Duplicate of #11047