Update README.md

[milespop]

Fix link to examples

Can't seem to tag you as assignees
@david-waltermire-nist @aj-stein-nist

Submission Summary -
Correct the link to the example docs

All Submissions:

• Have you followed the guidelines in our Contributing document?
• Have you checked to ensure there aren't other open Pull Requests for the same update/change?
• Have you squashed any non-relevant commits and commit messages? [instructions]
• Do all automated CI/CD checks pass?

Changes to Core Features:

N/A

[aj-stein-nist]

Thanks for your contribution. I had noticed this a few days ago, but had not fixed it myself or reported an issue. We appreciate the assist! 🚢

[aj-stein-nist]

I am going to skip waiting for CI/CD as this is a minor documentation change, looks good!