Another round of manual fixups

Another round of manual fixups

* doc/emacs/killing.texi (Killing by Lines): Clarify wording.
Reported by David Bonnafous <dbonnafo@gmail.com> in
emacs-manual-bugs@gnu.org.

* doc/emacs/windows.texi (Other Window): Improve wording.
Reported by Rasmus Sjostrom <ras.sjostrom@gmail.com> in
emacs-manual-bugs@gnu.org.

* doc/emacs/display.texi (Display Custom): Mention that line
numbers are not displayed in the minibuffer and tooltips.

* doc/emacs/mini.texi (Basic Minibuffer): Improve wording.
* doc/emacs/regs.texi (Registers): More comma removal.  Suggested
by "root@vxid.pw root@vxid.pw" <root@vxid.pw> in
emacs-manual-bugs@gnu.org.

* doc/emacs/display.texi (Auto Scrolling): Fix a typo.  Reported
by Kevin Foley <kfoley15@gmail.com> in emacs-manual-bugs@gnu.org.

* doc/emacs/display.texi (Scrolling): Fix grammar.
(Horizontal Scrolling): Mention reasonable limits for hscroll-step
float values.  Suggested by Jerome Truong <jerometruong@gmail.com>
in emacs-manual-bugs@gnu.org.

* doc/emacs/mini.texi (Minibuffer Edit): Add a missing comma.
* doc/emacs/basic.texi (Position Info, Arguments, Repeating):
Remove redundant commas.  Suggested by oldgaro
<oldgaro@protonmail.com> in emacs-manual-bugs@gnu.org.

* doc/emacs/kmacro.texi (Save Keyboard Macro): Clarify wording.
Suggested by clemens.radermacher@posteo.de in
emacs-manual-bugs@gnu.org.

* doc/emacs/building.texi (Compilation Mode): Improve and simplify
wording.  Suggested by drone <yoorobot@gmail.com> in
emacs-manual-bugs@gnu.org.

* doc/emacs/dired.texi (Dired Enter): Clarify wording.
(Dired Deletion): Fix a typo.
(Marks vs Flags): Mention that M-DEL in Dired asks for the mark
character.  Fix typos.
* doc/emacs/basic.texi (Moving Point, Erasing, Basic Undo)
(Arguments): Some additional information about keys.  Reported by
Francis Wright <f.j.wright@live.co.uk> in
emacs-manual-bugs@gnu.org.