data: add siva-sankaran (#3757)

Author: siva-sankaran

README.md

@@ -2512,6 +2512,7 @@ A GitHub conflict is when people make changes to the same area or line in a file
   - [Simran Biswas](https://github.com/simranbiswas)
   - [sirajudeen](https://github.com/SIRAJUDEEN-I)
   - [sirmalev](https://github.com/sirmalev)
+  - [Siva Sankaran S](https://github.com/siva-sankaran)
   - [Sivuyile Mene](https://github.com/sivuyilemene)
   - [Sk Elaf Ahmed](https://github.com/Elu007)
   - [slvler](https://github.com/slvler)