doc: revise http documentation

PR-URL: #8486
Reviewed-By: Сковорода Никита Андреевич <[email protected]>
Reviewed-By: Luigi Pinca <[email protected]>
Reviewed-By: Anna Henningsen <[email protected]>
Reviewed-By: Ilkka Myller <[email protected]>
Reviewed-By: James M Snell <[email protected]>

Author: TimothyGu