docs: add Temesgen Geta to contributors list (#114545)

Author: nigusmamo

Contributors.md

@@ -2,6 +2,7 @@
 [sejal wattamwar](https://github.com/sejal88944)
 -[Arul Cornelious](https://github.com/Arul1998)
 -[Divyanshu Kumar](https://github.com/dgiitm)
+- [Temesgen Geta] (https://github.com/nigusmamo)
 - [chandra kireeti](https://github.com/kireetikotturu)
 - - [Rahul Chaube](https://github.com/Rahulchaube1)
 - [Luca-Python](https://github.com/luca-python)