Add Yuvi Mittal to team member profiles

Added Yuvi Mittal's profile with bio and GitHub links.

Author: yuvimittal

pages/about/team/index.md

@@ -30,6 +30,14 @@ teams:
         image_url: https://avatars.githubusercontent.com/u/4383323?v=4
         github_url: https://github.com/luisgagocasas
 
+      - name: Yuvi Mittal
+        bio: |
+           Software Engineer and open-source contributor with a strong interest in compilers,
+           systems programming, and backend development. Experienced in JavaScript, C, and Python,
+           with hands-on work in LLVM-IR generation, APIs, and collaborative open-source projects.
+        github_url: https://github.com/yuvimittal
+        github_sponsor: https://github.com/sponsors/yuvimittal
+
       - name: Aniket Kumar
         bio: |
           Machine learning Engineer passionate about Open Science and Open Source.