docs(samples): update revierwers for samples module changes (#401)

* docs(samples): update revierwers for samples module changes

* Update .github/CODEOWNERS

Co-authored-by: Kurtis Van Gent <[email protected]>

Co-authored-by: Kurtis Van Gent <[email protected]>

Author: stephaniewang526

.github/CODEOWNERS

@@ -5,4 +5,4 @@
 # https://help.github.com/en/github/creating-cloning-and-archiving-repositories/about-code-owners#codeowners-syntax
 
 # The java-samples-reviewers team is the default owner for samples changes
-samples/                         @stephaniewang526 @GoogleCloudPlatform/java-samples-reviewers
+samples/**/*.java                        @stephaniewang526 @googleapis/java-samples-reviewers