Add missing alumni interns

[lchoy]

I noticed that a few summer internship alumni are missing from the website:

• Erica Stutz (June 2022 - August 2022) - DBMI Summer Institute Intern -> “Erica is an intern in the Summer Institute at the Department of Biomedical Informatics at Harvard Medical School.”

• Julian Zulueta (June 2022 - August 2022) - DBMI Summer Institute Intern -> “Julian is an intern in the Summer Institute at the Department of Biomedical Informatics at Harvard Medical School.”

• Tram Nguyen (June 2022 - August 2022) - HuBMAP Intern -> “Tram is an intern in the NIH HuBMAP Summer Internship Program.”