Merge from origin/emacs-26

6937c35 (origin/emacs-26) Improve recent changes in documentation of ...
c04b48c Rewrite documentation of buffer display
7cadb32 ; * doc/lispref/control.texi (pcase Macro): Fix another typo.
963f1d9 ; * doc/lispref/control.texi (pcase Macro): Fix a typo.
e824c91 Improve documentation of destructuring-binding macros

diff --cc doc/emacs/windows.texi
Simple merge

diff --cc doc/lispref/control.texi
Simple merge

diff --cc doc/lispref/elisp.texi
Simple merge

diff --cc doc/lispref/frames.texi
Simple merge

diff --cc doc/lispref/sequences.texi
Simple merge

diff --cc doc/lispref/windows.texi
Simple merge

diff --cc lisp/emacs-lisp/pcase.el
Simple merge