Add contributor

Author: Oliver Cervera

README.md

@@ -299,3 +299,4 @@ This script would not exist without:
 - [cmcginty](https://github.com/cmcginty)
 - [nzlov](https://github.com/nzlov)
 - [Caedis](https://github.com/Caedis)
+- [Pushpender](https://github.com/ranapushpender)