Go how-to style and copy improvements.
Go how-to style and copy improvements.

PiperOrigin-RevId: 244947053
GitOrigin-RevId: 411f1a314678e2feae932d57b2ecc90408b6c4cb

google/tink,google/tink,google/tink,google/tink,google/tink,google/tink,google/tink,google/tink