add mahadevan to community member

Signed-off-by: Liben Hailu <libenhailu04@gmail.com>

Author: LibenHailu

src/collections/members/mahadevan-ks/index.mdx

@@ -0,0 +1,12 @@
+---
+name: Mahadevan K.S
+position: Contributor
+image_path: ./mahadevan.webp
+github: M-DEV-1
+twitter: mdev_1
+linkedin: ksmahadevan
+layer5: c87691d9-3cb7-4b11-9278-f086e64914bf
+bio: Hey, I’m Mahadevan, a CS undergrad and web developer, exploring the world of cloud native tech. I’m interested in systems that blend thoughtful design with practical engineering, and I enjoy being a part of open source communities.
+status: Active
+published: true
+---