[AIRFLOW-XXX] Updated readme with "Who's using" information (#6238)

README.md

@@ -285,6 +285,7 @@ Currently **officially** using Airflow:
 1. [Kargo](https://kargo.com) [[@chaithra-yenikapati](https://github.com/chaithra-yenikapati), [@akarsh3007](https://github.com/akarsh3007) & [@dineshanchan](https://github.com/dineshanchan)]
 1. [Karmic](https://karmiclabs.com) [[@hyw](https://github.com/hyw)]
 1. [King](https://king.com) [[@nathadfield](https://github.com/nathadfield)]
+1. [King Abdullah Petroleum Studies and Research Center(KAPSARC)](https://github.com/kapsarc) [[@saianupkumarp](https://github.com/saianupkumarp)]
 1. [Kiwi.com](https://kiwi.com/) [[@underyx](https://github.com/underyx)]
 1. [Kogan.com](https://github.com/kogan) [[@geeknam](https://github.com/geeknam)]
 1. [Korbit](https://www.korbit.co.kr/) [[@jensenity](https://github.com/jensenity)]