incorporate comments from previous pull request (#473)
incorporate comments from previous pull request (#473)

* incorporate comments from previous pull request

* Update docs/tfengine/README.md

Co-authored-by: Umair Idris <51d054360d8b52fa82cf6ee6e1e9fffbd9101733@gmail.com>

Co-authored-by: xxshambm <d033e22ae348aeb5660fc2140aec35850c4da997@careb2b.com>
Co-authored-by: Umair Idris <51d054360d8b52fa82cf6ee6e1e9fffbd9101733@gmail.com>
GoogleCloudPlatform/solution-acceleration-toolkit,GoogleCloudPlatform/solution-acceleration-toolkit