added Rhys MacMillan details to people data

Author: RhysMacMillan

_data/people.yml

@@ -186,7 +186,7 @@
   pic: /img/people/macmillanr.png
   dates: 2024-Present
   role: Undergraduate Research Assistant
-  description: 'Ideal ARFC group members seek to advance nuclear energy challenges through advanced computing, physics-informed modeling, and sophisticated simulation'
+  description: 'Rhys is an undergraduate in NPRE. He is interested in understanding the global fuel cycle.'
   social:
     - url: mailto:[email protected]
       icon: envelope-o