[LyX/master] DocBook: fix a typo in comments and improve docs.

[Thibaut Cuvelier]

commit 43d096f6471e0c52779ab1ed28349c3667703bfc
Author: Thibaut Cuvelier <tcuvelier at lyx.org>
Date:   Thu Dec 22 03:40:50 2022 +0100

    DocBook: fix a typo in comments and improve docs.
---
 src/Layout.h |    3 ++-
 1 files changed, 2 insertions(+), 1 deletions(-)

diff --git a/src/Layout.h b/src/Layout.h
index e837339..7fc8a7c 100644
--- a/src/Layout.h
+++ b/src/Layout.h
@@ -582,7 +582,8 @@ private:
 	bool docbooksection_;
 	/// Whether this tag must/can/can't go into an <info> tag (default: never, as it only makes sense for metadata).
 	mutable std::string docbookininfo_;
-	/// Wehther this paragraph should be considered as abstract.
+	/// Whether this paragraph should be considered as abstract. Such paragraphs are output as a part of the document
+	/// abstract element (corresponding to the root tag).
 	bool docbookabstract_;
 	/// Whether this element (root or not) does not accept text without a section (i.e. the first text that is met
 	/// in LyX must be considered as the abstract if this is true); this text must be output with the specific tag