Updates to code owners (#4160)

* Updates to code owners

Based on the latest updates to https://github.com/dotnet/runtime/blob/master/docs/area-owners.md

* Update CODEOWNERS

Author: carlossanlop

.github/CODEOWNERS

@@ -19,10 +19,10 @@
 
 # Area owners of the dotnet/runtime repo: https://github.com/dotnet/runtime/blob/master/docs/area-owners.md 
 
-/xml/System.Buffers**/** @layomia @JeremyKuhne
+/xml/System.Buffers**/** @tannergooding @GrabYourPitchforks @pgovind
 /xml/System.CodeDom**/** @buyaa-n @krwq
 /xml/System.Collections**/** @eiriktsarpalis @layomia
-/xml/System.ComponentModel**/** @JeremyKuhne @safern
+/xml/System.ComponentModel**/** @safern
 /xml/System.ComponentModel.Composition**/** @maryamariyan @ViktorHofer
 /xml/System.ComponentModel.DataAnnotations**/** @lajones @ajcvickers
 /xml/System.ComponentModel.Design**/** @RussKie @merriemcgaw
@@ -36,31 +36,31 @@
 /xml/System.Diagnostics/PerformanceCounter*.xml @Anipik
 /xml/System.Diagnostics/Process*.xml @adsitnik @eiriktsarpalis
 /xml/System.Diagnostics/TraceSource.xml @Anipik
-/xml/System.Diagnostics.Tracing**/** @Anipik
+/xml/System.Diagnostics.Tracing**/** @noahfalk @tommcdon @tarekgh @Anipik
 /xml/System.DirectoryServices**/** @tquerec @josephisenhour
-/xml/System.Drawing**/** @JeremyKuhne @maryamariyan
+/xml/System.Drawing**/** @safern @tannergooding
 /xml/System.Dynamic**/** @cston @333fred
 /xml/System.Globalization**/** @safern @krwq @tarekgh
-/xml/System.IO**/** @JeremyKuhne @carlossanlop @jozkee
+/xml/System.IO**/** @carlossanlop @jozkee
 /xml/System.IO.Compression**/** @carlossanlop @ericstj
 /xml/System.IO.Pipelines**/** @davidfowl @halter73 @jkotalik @anurse
-/xml/System.Linq**/** @eiriktsarpalis
-/xml/System.Linq/Parallel*.xml @tarekgh @kouvel
+/xml/System.Linq**/** @eiriktsarpalis @adamsitnik
 /xml/System.Linq.Expressions**/** @cston @333fred
+/xml/System.Linq/Parallel*.xml @tarekgh @kouvel
 /xml/System.Management**/** @Anipik
 /xml/System.Net**/** @dotnet/ncl
-/xml/System.Numerics**/** @tannergooding @pgovind 
+/xml/System.Numerics**/** @tannergooding @pgovind
 /xml/System.Reflection**/** @steveharter @GrabYourPitchforks
 /xml/System.Reflection.Emit**/** @steveharter @GrabYourPitchforks
-/xml/System.Reflection.Metadata**/** @tmat @nguerrera
+/xml/System.Reflection.Metadata**/** @tmat
 /xml/System.Resources**/** 	@buyaa-n @tarekgh @krwq
 /xml/System.Runtime**/** @bartonjs @joperezr
 /xml/System.Runtime.Caching**/** @StephenMolloy @HongGit
 /xml/System.Runtime.CompilerServices**/** @Anipik @steveharter
 /xml/System.Runtime.InteropServices**/** @AaronRobinsonMSFT @jkoritzinsky
-/xml/System.Runtime.Intrinsics**/** @tannergooding @CarolEidt @RussKeldorph
+/xml/System.Runtime.Intrinsics**/** @tannergooding @CarolEidt @echesakovMSFT
 /xml/System.Security**/** @bartonjs @GrabYourPitchforks @krwq
-/xml/System.ServiceModel.Syndication**/** @StephenMolloy @HongGit @mconnew
+/xml/System.ServiceModel**/** @HongGit @mcconnew StephenMolloy
 /xml/System.ServiceProcess**/** @Anipik
 /xml/System.Text**/** @tarekgh @GrabYourPitchforks
 /xml/System.Text/Encoding*.xml @layomia @krwq @tarekgh