Update people list

Just a quick update

Author: ChrisRackauckas

_assets/people.csv

@@ -8,16 +8,16 @@ Albert R. Gnadt,Postdoctoral Associate,https://albertgnadt.com/,Current Member,Y
 Emmanuel Lujan,Postdoctoral Associate,http://www.emmanuellujan.com,Current Member,Yes
 Frank Schaefer,Postdoctoral Associate,https://frankschae.github.io,Current Member,Yes
 Torkel Loman,Postdoctoral Associate,https://github.com/TorkelE,Current Member,Yes
-Wiktor Phillips,Postdoctoral Associate,https://github.com/wsphillips,Current Member,Yes
-Alexander Lenail,PhD Student,https://alexlenail.me/,Current Member,Yes
-Ali Ramadhan,PhD Student,https://www.linkedin.com/in/ali-ramadhan/,Current Member,Yes
+Wiktor Phillips,Postdoctoral Associate,https://github.com/wsphillips,Alumni,Yes
+Alexander Lenail,PhD Student,https://alexlenail.me/,External Collaborator,Yes
+Ali Ramadhan,PhD Student,https://www.linkedin.com/in/ali-ramadhan/,Alumni,Yes
 Avik Pal,PhD Student,https://avik-pal.github.io/,Current Member,Yes
 Bowen Zhu,PhD Student,https://bowenzhu.mit.edu/,Current Member,Yes
 Difei Zhang,PhD Student,https://www.linkedin.com/in/difeizhang/,Current Member,Yes
 Emily Helen Nieves,PhD Student,https://github.com/nievesemily8,Current Member,Yes
 Flemming Holtorf,PhD Student,https://github.com/FHoltorf,Current Member,Yes
 Nicholas E Klugman,PhD Student,https://www.linkedin.com/in/nicholas-klugman/,Current Member,Yes
-Raj Abhijit Dandekar,PhD Student,https://rajdandekar.github.io/,Current Member,Yes
+Raj Abhijit Dandekar,PhD Student,https://rajdandekar.github.io/,Alumni,Yes
 Shashi Gowda,PhD Student,http://shashi.biz/,Current Member,Yes
 Theo Diamandis,PhD Student,https://github.com/tjdiamandis,Current Member,Yes
 Valentin Churavy,PhD Student,https://vchuravy.dev,Current Member,Yes
@@ -35,7 +35,7 @@ Fons van der Plas,Research Software Engineer,https://github.com/fonsp,Current Me
 Julian Samaroo,Research Software Engineer,https://github.com/jpsamaroo,Current Member,Yes
 Gaurav Arya,Undergraduate,https://www.mit.edu/~aryag/,Current Member,Yes
 David Hofmann,Research Affiliate,https://www.linkedin.com/in/david-hofmann-5b7962b0/,Internal Collaborator,Yes
-Sageanne Senneff,Research Affiliate,https://www.linkedin.com/in/sageanne/,Internal Collaborator,Yes
+Sageanne Senneff,Research Affiliate,https://www.linkedin.com/in/sageanne/,Alumni,Yes
 John Urschel,Postdoctoral Affiliate,https://math.mit.edu/~urschel/,Internal Collaborator,Yes
 Alex Townsend,,http://math.mit.edu/~ajt/,External Collaborator,Yes
 Chiyuan Zhang,,http://pluskid.org,External Collaborator,Yes