navigation for ansible operator broken

[dlbewley]

First. Thanks for this awesome lab.

I'm attempting to dip directly into the Ansible Operator lab, but the left navigation is not ordered sequentially. It presents like this:

ANSIBLE OPERATOR OVERVIEW
Finished
Ansible Operator Overview
Background
File Layout
Custom Resources
Working with Custom Resources
operator-sdk CLI
Implementing Operator Logic
Build and Run Your Operator
Deploy Memcached with the Operator
Run the Operator Locally

If I access the "Ansible Operator Overview" link it produces a 404.

The only way I can access this page is by clicking on the "Background" link and selecting the left arrow in the top navigation.

Can the navigation be improved?