Rdp add highlighted workshops page

[russd2357]

Purpose

Fixes the link for getting the main.bicep file for standing up the lab environment. Also adds cards for highlighted workshops on the introduction page.

• ...

Does this introduce a breaking change?

[ ] Yes
[X] No

Pull Request Type

What kind of change does this Pull Request introduce?

[ ] Bugfix
[ ] Feature
[ ] Code style update (formatting, local variables)
[ ] Refactoring (no functional changes, no api changes)
[X] Documentation content changes
[ ] Other... Please describe:

How to Test

• Get the code, build the site, run the server, and verify the changes

git clone [repo-address]
cd [repo-name]
git checkout [branch-name]
npm install
npm run start

• Test the code

What to Check

Verify that the following are valid

• ...

Other Information

[pauldotyu]

Small nit. Can we call it "Featured Workshops" instead of "Highlighted Workshops"?