git: openjdk/amber-docs: Copy edits & minor updates from PR#1

[duke]

Changeset: 193c5fab
Author:    Anthony Vanelverdinghe <dev at anthonyv.be>
Committer: GitHub <noreply at github.com>
Date:      2020-08-08 16:57:38 +0000
URL:       https://git.openjdk.java.net/amber-docs/commit/193c5fab

Copy edits & minor updates from PR#1

* Remove trailing whitespace

* Fix CSS comments

* Copy edit index

* Copy edit guides

* Refer to/include new escape sequences

* Remove remnant of a previous publication

* Remove executable bit

! Makefile
! README
! site/design-notes/constables.md
! site/design-notes/extending-switch-for-patterns.md
! site/design-notes/pattern-match-semantics.md
! site/design-notes/pattern-match-translation.md
! site/design-notes/pattern-matching-for-java.md
! site/design-notes/records-and-sealed-classes.md
! site/design-notes/towards-better-serialization.md
! site/design-notes/type-patterns-in-switch.md
! site/guides/lvti-faq.md
! site/guides/lvti-style-guide.md
! site/guides/text-blocks-guide.md
! site/index.md
! style.css