Update image syntax in ChanYongPark.md

Author: Hyundol

people/ChanYongPark.md

@@ -4,7 +4,7 @@ title: ChanYong Park
 ---
 
 ## ChanYong Park (박찬용)
-<img src="{{ site.baseurl }}/assets/img/profile/profile_chanyongpark.jpeg" alt="placeholder image" style="width: 250px; height: 250px;  object-fit: cover;">
+![alt_text]({{ site.baseurl }}/assets/img/profile/profile_chanyongpark.jpeg)
 
 ### Research Interests
 * Biomedical engineering