Add kjang96 as codeowner (#1001)

Author: liljonnystyle

CODEOWNERS

@@ -2,7 +2,7 @@
 # Each line is a file pattern followed by one or more owners.
 
 # These owners will be the default owners for everything in the repo.
-*       @cathywu @eugenevinitsky @AboudyKreidieh @kanaadp
+*       @eugenevinitsky @AboudyKreidieh @kjang96
 
 # Order is important. The last matching pattern has the most precedence.
 # So if a pull request only touches javascript files, only these owners