Codas-Hep 2024: Fix Chenguang Guam’s photo bug (#2304)

Author: SciCodePhy

_codas-hep-students/2024/SciCodePhys.md

@@ -3,7 +3,7 @@ layout: codas-hep-participant
 e-mail: [email protected]
 institution: Brown University
 name: Chenguang (Nick) Guan
-photo: "/assets/images/codas-hep/2024/Chenguang-Guan.jpg"
+photo: "/assets/images/codas-hep/2024/Chenguang-Guan.png"
 github-username: SciCodePhy
 linkedin-profile: linkedin.com/in/chenguang-guan-b47770180
 orcid: