Add overload guide to Academics index page

[jere-mie]

What are you trying to accomplish?

Add the overload guide to the index page of the academics section

How are you accomplishing it?

Simply adding it to the index.md

Is there anything reviewers should know?

No

Checks before you create your pull request

• [x] Did you read and follow article requirements?
• [x] Did you run prettier?
• [x] Is it safe to rollback this change if anything goes wrong?

[Dante-Masciotra]

It has my approval