diff --git a/book/intro.md b/book/intro.md
index 0fa259e..feba843 100644
--- a/book/intro.md
+++ b/book/intro.md
@@ -14,9 +14,9 @@
 
 | Name | Affiliation | Role | email |
 | ------------- | ------------- | ------------- | ------------- |
-| [Elizabeth Eli Holmes](https://www.linkedin.com/in/elizabeth-eli-holmes-354b76/) | NOAA Fisheries, University of Washington SAFS| SAFS Varanasi mentor | eli.holmes@noaa.gov [<i class="fa-brands fa-orcid"></i>](https://orcid.org/0000-0001-9128-8393) [<i class="fa-solid fa-globe"></i>](https://eeholmes.github.io/) [<i class="fa-brands fa-github"></i>](https://github.com/eeholmes) |
-[Shridhar Sinha](https://www.linkedin.com/in/shridhar-sinha-5b7125184/)  | University of Washington, Paul G. Allen School of Computer Science & Engineering | 2024 SAFS Varanasi Intern | ssinha19@uw.edu [<i class="fa-brands fa-github"></i>](https://github.com/ShridharS19) |
-| Yifei Hang  | University of Washington, Applied & Computational Mathematical Sciences | 2024 SAFS Varanasi Intern | yhang2@uw.edu  [<i class="fa-brands fa-github"></i>](https://github.com/yifeihang) |
+| [Elizabeth Eli Holmes](https://www.linkedin.com/in/elizabeth-eli-holmes-354b76/) | NOAA Fisheries, University of Washington SAFS| SAFS Varanasi mentor | [<i class="fa-solid fa-envelope"></i>](mailto:eli.holmes@noaa.gov) [<i class="fa-brands fa-orcid"></i>](https://orcid.org/0000-0001-9128-8393) [<i class="fa-solid fa-globe"></i>](https://eeholmes.github.io/) [<i class="fa-brands fa-github"></i>](https://github.com/eeholmes) |
+[Shridhar Sinha](https://www.linkedin.com/in/shridhar-sinha-5b7125184/)  | University of Washington, Paul G. Allen School of Computer Science & Engineering | 2024 SAFS Varanasi Intern | [<i class="fa-solid fa-envelope"></i>](mailto:ssinha19@uw.edu)  [<i class="fa-brands fa-github"></i>](https://github.com/ShridharS19) |
+| Yifei Hang  | University of Washington, Applied & Computational Mathematical Sciences | 2024 SAFS Varanasi Intern | [<i class="fa-solid fa-envelope"></i>](mailto:yhang2@uw.edu)   [<i class="fa-brands fa-github"></i>](https://github.com/yifeihang) |
 | [Jiarui Yu](https://www.linkedin.com/in/jiarui-yu-0b0ab522b/) | University of Washington, Applied & Computational Mathematical Sciences | 2023 SAFS Varanasi Intern | [<i class="fa-brands fa-github"></i>](https://github.com/NaNa7Miiii)  |
 | [Minh Phan](https://www.linkedin.com/in/minhphan03/)  | University of Washington, Applied & Computational Mathematical Sciences | 2023 SAFS Varanasi Intern | [<i class="fa-brands fa-github"></i>](https://github.com/minhphan03) |
 | [Ares Fisher](https://www.linkedin.com/in/aris-fiser/)| University of Washington, Paul G. Allen School of Computer Science & Engineering | geo-smart HackWeek 2024 | [<i class="fa-brands fa-github"></i>](https://github.com/FishAres) |