Updating Campus Experts GitHub Doc Landing Page

[bassa846]

@jen-k @dgyani

Why: Moving around updated content that's currently on the About GitHub Education Doc

What's being changed: Adding a new sentence and link for the Campus Experts page

Check off the following:

• All of the tests are passing.
• I have reviewed my changes in staging. (look for the deploy-to-heroku link in your pull request, then click View deployment)
• For content changes, I have reviewed the localization checklist
• For content changes, I have reviewed the Content style guide for GitHub Docs.

[welcome]

Thanks for opening this pull request! A GitHub docs team member should be by to give feedback soon. In the meantime, please check out the contributing guidelines.

[github-actions]

This PR is stale because it has been open 7 days with no activity and will be automatically closed in 3 days. To keep this PR open, update the PR by adding a comment or pushing a commit.

[github-actions]

This PR is stale because it has been open 7 days with no activity and will be automatically closed in 3 days. To keep this PR open, update the PR by adding a comment or pushing a commit.

[hubwriter]

@bassa846 - Thank you for contributing to the GitHub documentation. You've raised 3 PRs to change 3 files:

• PR 2172: changes "About GitHub Education"
• This PR changes: "About Campus Experts"
• PR 2173 changes: "About Campus Advisors"

As these are all part of the same piece of work I've merged this PR into 2172 so that we can deal with this in one place, and merge all of these changes at the same time. I'm going to close this PR as a result.

Thanks again.