Adding headings within a page to the wiki widget menu

Hello

I have a wiki page that looks like this
Page Title

Heading 1
Some text

Heading 2
Some text

Heading 3
Some text

At the moment the wiki widget menu looks like this

WIKI
*Title

I would like it to look like this

WIKI
*Title
*Heading 1
* Heading 2
* Heading 3

I would like to have the menu set up so when you click on the Heading 2 menu item for instance it will scroll the page down to that section.

If you can let me know if this is possible and if you need anymore information

Thank you

Nick