Add new internship students.

Author: hyeshik

_data/alumni_interns.yml

@@ -1,3 +1,13 @@
+- name: Hyun Soo Ham
+  year_begin: 2025
+  year_end: 2025
+  affiliation_then: Seoul National University
+
+- name: Nakbeom Seong
+  year_begin: 2024
+  year_end: 2025
+  affiliation_then: Korea University
+
 - name: Jisu Rim
   year_begin: 2024
   year_end: 2024