Release 4.2060.0

Update WS testing coding standards doc (#12213)

* update: WS testing/ coding standards doc

* update: add links in the reference section

* Apply suggestions from code review

Co-authored-by: Karina Thomas [email protected]

* Apply suggestions from code review

Co-authored-by: Karina Thomas [email protected]

* Apply suggestions from code review

Co-authored-by: Karina Thomas [email protected]

* refactor: per comments

* refactor: per comments

* refactor: remove private links from the doc

* refactor: Added Table of Contents

* refactor: per pr review

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Co-authored-by: Karina Thomas [email protected]
Co-authored-by: Holly Christopher [email protected]