Update README.md

Author: Naramsim

README.md

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 # PokeKotlin
 
+Maintainer: [sargunv](https://github.com/sargunv)
+
 This is a Java (and Kotlin, Scala, etc) client for [PokeApi](https://github.com/PokeAPI/pokeapi). It's written in Kotlin.
 
 ## Example