MINI-PATCH: add how to turn auto-completion in test buffers off

[Pedro Andres Aranda Gutierrez <paaguti@gmail.com>]

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Hi,

I find auto-completion suggestions when writing text quite intrusive and
distracting. It has taken me some Emacs Lisp reading to find out how to
turn it off. Attached is a micro-patch to add a small hint to turn it off.
A reminder: there are people who need to be not disturbed with external
stimuli when working (for example attention deficits, etc.)

Thx, /PA

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diff --git a/doc/lispref/modes.texi b/doc/lispref/modes.texi
index b034fecd77b..8a61117142d 100644
--- a/doc/lispref/modes.texi
+++ b/doc/lispref/modes.texi
@@ -1056,7 +1056,8 @@ Basic Major Modes
 @samp{"} and @samp{\} characters as having punctuation syntax
 (@pxref{Syntax Class Table}), and arranges for
 @code{completion-at-point} to complete words based on the spelling
-dictionary (@pxref{Completion in Buffers}).
+dictionary (@pxref{Completion in Buffers}), unless variable
+@code{text-mode-ispell-word-completion} is set to @code{nil}.

 An example of a major mode derived from Text mode is HTML mode.
 @xref{HTML Mode,,SGML and HTML Modes, emacs, The GNU Emacs Manual}.
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Fragen sind nicht da, um beantwortet zu werden,
Fragen sind da um gestellt zu werden
Georg Kreisler

Headaches with a Juju log:
unit-basic-16: 09:17:36 WARNING juju.worker.uniter.operation we should run
a leader-deposed hook here, but we can't yet

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