Update CODEOWNERS

Updating file to support 8/26 great divide migration

Author: thomps23

CODEOWNERS

@@ -19,3 +19,10 @@
 /articles/virtual-machines-scale-sets @jasonwhowell @thomps23
 /articles/container-instances @jasonwhowell @thomps23
 /articles/service-fabric @jasonwhowell @thomps23
+/articles/machine-learning @jasonwhowell @thomps23
+/articles/ai-studio @jasonwhowell @thomps23
+/articles/ai-services @jasonwhowell @thomps23
+/articles/genomics @jasonwhowell @thomps23
+/articles/open-datasets @jasonwhowell @thomps23
+/articles/search @jasonwhowell @thomps23
+