Turn off editing for auto-generated index pages, and scroll the user to the right section

Docker-DCO-1.1-Signed-off-by: Sven Dowideit <SvenDowideit@docker.com> (github: SvenDowideit)
Merge pull request #8530 from SvenDowideit/auto-scroll-to-auto-index-section-the-user-requested

Turn off editing for auto-generated index pages, and scroll the user to the right section