README.md: add Nikolas Kyx to contributors list

Signed-off-by: Colin Ian King <[email protected]>

README.md

@@ -688,7 +688,7 @@ Jules Maselbas, Julien Olivain, Kenny Gong, Khalid Elmously, Khem Raj,
 Luca Pizzamiglio, Luis Chamberlain, Luis Henriques, Matthew Tippett,
 Mauricio Faria de Oliveira, Maxime Chevallier, Max Kellermann, Maya Rashish,
 Mayuresh Chitale, Meysam Azad, Mike Koreneff, Munehisa Kamata, Nick Hanley,
-Paul Menzel, Piyush Goyal, Ralf Ramsauer, Rosen Penev, Rulin Huang,
+Nikolas Kyx, Paul Menzel, Piyush Goyal, Ralf Ramsauer, Rosen Penev, Rulin Huang,
 Sascha Hauer, Siddhesh Poyarekar, Shoily Rahman, Thadeu Lima de Souza Cascardo,
 Thia Wyrod, Thinh Tran, Tim Gardner, Tim Gates, Tim Orling,
 Tommi Rantala, Witold Baryluk, Yong-Xuan Wang, Zhiyi Sun.