Update credits.yaml

[imhunterand]

Screenshots

Screenshots

Add any relevant before/after screenshots here

How did you test the change?

• [ ] iOS Simulator
• [ ] iOS Device
• [ ] Android Simulator
• [ ] Android Device
• [ ] curl to a dev App Engine server
• [ ] other, please describe

Checklist:

• [x] Followed the Contributor Guidelines and verified that all contributions are properly licensed pursuant to the LICENSE.