Update codeowners

CODEOWNERS

@@ -1,9 +1,22 @@
 # Testing the new code owners feature in GitHub. Please contact Cory Fowler if you have questions.
 
+# Global owner
+* @mcleanbyron
+
+# Intro
+/articles/intro/ @mcleanbyron
+
 # DevOps
-articles/ansible/ @TomArcherMsft
-articles/chef/ @TomArcherMsft
-articles/jenkins/ @TomArcherMsft
-articles/terraform/ @TomArcherMsft
+/articles/ansible/ @TomArcherMsft
+/articles/chef/ @TomArcherMsft
+/articles/jenkins/ @TomArcherMsft
+/articles/terraform/ @TomArcherMsft
+
+# DevEx
+/articles/java/ @KarlErickson
+/articles/javascript/ @diberry 
+/articles/python/ @bobtabor-msft
+/articles/go/ @bobtabor-msft
 
-articles/java @KarlErickson
+# Tools
+/articles/azure-cli/ @alexwolfmsft