Fix contributor links and add new contributor (#5)

Corrected links for Amal Krishna and abhijith-k-r, and added Adithyan.

Co-authored-by: Adithyan <adithyanmkd@users.noreply.github.com>

Author: naheel0

Contributors.md

@@ -10,8 +10,9 @@ If your name is below — congratulations! 🎉
 ## 🚀 Contributors
 
 * [Naheel Muhammed ](https://github.com/naheel0)
-* [Amal Krishna ](https://githib.com/Amal-24)
-* [abhijith-k-r](https://github.con/abhijith-k-r)
+* [Amal Krishna ](https://github.com/Amal-24)
+* [abhijith-k-r](https://github.com/abhijith-k-r)
+* [Adithyan](https://github.com/adithyanmkd)
 
 
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