Add Karina Shah profile (People) + headshot and website link

Author: karinashah

_people/karina.md

@@ -0,0 +1,10 @@
+---
+lastname: "Shah"
+firstname: "Karina"
+pub_id: "Shah K"
+role: "Undergraduate Student"
+status: "active"
+pronouns: "she/her"
+image_path: /assets/images/karina_shah.jpg
+website: "https://karinashah.github.io/lab1-portfolio/"
+---