Add the code coverage as an item to the docs index page

[halcwb]

Is your feature request related to a problem? Please describe.
The code coverage docs don't show up in the docs index page.

Describe the solution you'd like
A menu item or card to be able to access the code coverage docs..

Describe alternatives you've considered
Open the docs locally.

Additional context
NA

[TheAngryByrd]

I've also been thinking of moving to use https://coveralls.io/ since this works on OSS repos for free