Another round of manual fixes from proofreading

Another round of manual fixes from proofreading

* doc/emacs/search.texi (Incremental Search)
(Nonincremental Search): Mention the menu bar and fix typos.
Reported by David Bonnafous <dbonnafo@gmail.com> in
emacs-manual-bugs@gnu.org.
* doc/emacs/building.texi (Compilation): Improve wording.
Suggested by drone <yoorobot@gmail.com> in
emacs-manual-bugs@gnu.org.
* doc/emacs/kmacro.texi (Basic Keyboard Macro): Clarify text.
Suggested by Robert Pluim <rpluim@gmail.com> in
emacs-manual-bugs@gnu.org.
* doc/emacs/display.texi (Highlight Interactively, Fringes):
Improve wording.  Suggested by Justin Heyes-Jones
<justinhj@gmail.com> in emacs-manual-bugs@gnu.org.
* doc/emacs/commands.texi (User Input, Commands): Add missing
commas.
* doc/emacs/screen.texi (Menu Bar): Mention keyboard keys to
navigate menus.  Suggested by oldgaro <oldgaro@protonmail.com> in
emacs-manual-bugs@gnu.org.
* doc/emacs/search.texi (Not Exiting Isearch): Fix a typo.
Reported by "Kocken, I.J. (Ilja)" <I.J.Kocken@uu.nl> in
emacs-manual-bugs@gnu.org.
* doc/emacs/basic.texi (Inserting Text): Mention one more label of
RET.  Suggested by Francis Wright <f.j.wright@live.co.uk> in
emacs-manual-bugs@gnu.org.
* doc/emacs/text.texi (Paragraphs): Clarify text.  Reported by
Marcin Borkowski <mbork@mbork.pl> in emacs-manual-bugs@gnu.org.
* doc/emacs/maintaining.texi (Introduction to VC)
(Why Version Control?, VCS Merging): Fix typos and section
capitalization.  Suggested by "R. P. Dillon"
<rpdillon@killring.org> in emacs-manual-bugs@gnu.org.
* doc/emacs/modes.texi (Major Modes, Choosing Modes): Fix typos.
Reported by clemens.radermacher@posteo.de in
emacs-manual-bugs@gnu.org.