Migrate projects to the new format

_notes/interchange.md

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+---
+title: Interchange
+---
+
+![interchange-screenshots.png](../assets/projects/interchange-screenshots.png "Screenshots of Interchange.")
+
+**An iOS app for college transit, currently available for Chapman University.**
+View routes, shuttle locations, and estimated arrival times in a sleek,
+easy-to-use interface. I built this app using SwiftUI, Node.js and Apollo
+GraphQL, with Redis as a primary storage mechanism.
+
+[Download on the App Store](https://apps.apple.com/us/app/interchange-college-commute/id6739968742){: .primary-action }
+[Join the TestFlight](https://testflight.apple.com/join/HbuHfUgW){: .secondary-action }
+[Website](https://interchange.bchen.dev/){: .secondary-action }
+{: .horizontal-wrapper }