Hi all,
New to everything R and have Knited to HTML and published to Rpubs.
On a couple of searches I saw that some people had side menus within their Rpubs that looked like this:

However when I tried to create a side menu or a TOC it looks as follows:

In my.Rmd I have the following:
output:
html_document
toc: yes
My question is, how can I get my side menu or TOC to be displayed like the first image?
Any help would be appreciated. Thank you!