Added @yamila-moreno for work on #1199. Thanks!

docs/topics/credits.md

@@ -176,6 +176,7 @@ The following people have helped make REST framework great.
 * Ross McFarland - [ross]
 * Jacek Bzdak - [jbzdak]
 * Alexander Lukanin - [alexanderlukanin13]
+* Yamila Moreno - [yamila-moreno]
 
 Many thanks to everyone who's contributed to the project.
 
@@ -388,3 +389,4 @@ You can also contact [@_tomchristie][twitter] directly on twitter.
 [ross]: https://github.com/ross
 [jbzdak]: https://github.com/jbzdak
 [alexanderlukanin13]: https://github.com/alexanderlukanin13
+[yamila-moreno]: https://github.com/yamila-moreno