Fix for broken link

[JesseNReynolds]

The link-as-button for Join Us at https://codefordenver.org/#/about#organization sends to https://codefordenver.org/volunteer instead of https://codefordenver.org/#/volunteer. This is causing a 404 instead of displaying the volunteer page.

I tried getting the project running on my machine to test this solution, but couldn't; I believe the problem may be on line 17 of src/components/AboutOrg.tsx where it says href= instead of to= which is how all the navlink items are formatted.

[anotherpatrickcollins]

Adding a screenshot for this.

Low priority as we're super close to launching a new version but @JesseNReynolds thank you for catching this!