[LyX/master] Clarify \upbrace and \downbrace (#11896)

[Juergen Spitzmueller]

commit 4fc6b5f37cf807e5ceea496a6e7edf54045bdda9
Author: Juergen Spitzmueller <spitz at lyx.org>
Date:   Sat Jun 27 09:22:36 2020 +0200

    Clarify \upbrace and \downbrace (#11896)
---
 lib/doc/UserGuide.lyx    |   36 ++++++++++++++++++++++++++----------
 lib/doc/de/UserGuide.lyx |    8 ++------
 2 files changed, 28 insertions(+), 16 deletions(-)

diff --git a/lib/doc/UserGuide.lyx b/lib/doc/UserGuide.lyx
index b81a4e2..dd32fac 100644
--- a/lib/doc/UserGuide.lyx
+++ b/lib/doc/UserGuide.lyx
@@ -8489,14 +8489,12 @@ Verbatim
 \end_layout
 
 \begin_layout Verbatim
-
 This is Verbatim.
 \end_layout
 
 \begin_layout Verbatim
 \noindent
 \align block
-
 The following 2 lines are empty:
 \end_layout
 
@@ -8509,7 +8507,6 @@ The following 2 lines are empty:
 \end_layout
 
 \begin_layout Verbatim
-
 Almost everything is allowed in Verbatim:"%&$§#~'`
 \backslash
 }][{|
@@ -8533,7 +8530,6 @@ Verbatim
 \end_layout
 
 \begin_layout Verbatim*
-
 This is Verbatim*.
 \end_layout
 
@@ -11441,7 +11437,7 @@ em
 
 \begin_layout Plain Layout
 
-\change_inserted -712698321 1593162285
+\change_inserted -712698321 1593161917
 Medium
 \end_layout
 
@@ -11452,7 +11448,7 @@ Medium
 
 \begin_layout Plain Layout
 
-\change_inserted -712698321 1593162280
+\change_inserted -712698321 1593161917
 4
 \begin_inset space \thinspace{}
 \end_inset
@@ -11469,7 +11465,7 @@ mu
 
 \begin_layout Plain Layout
 
-\change_inserted -712698321 1593162294
+\change_inserted -712698321 1593161917
 Thick
 \end_layout
 
@@ -11480,7 +11476,7 @@ Thick
 
 \begin_layout Plain Layout
 
-\change_inserted -712698321 1593162280
+\change_inserted -712698321 1593161917
 5
 \begin_inset space \thinspace{}
 \end_inset
@@ -11821,7 +11817,17 @@ Right arrow:
 \end_layout
 
 \begin_layout Standard
-Up brace: 
+
+\change_deleted -712698321 1593242277
+Up
+\change_inserted -712698321 1593242278
+Down
+\change_unchanged
+ brace
+\change_inserted -712698321 1593242369
+ (= opened downwards)
+\change_unchanged
+: 
 \begin_inset space \downbracefill{}
 \end_inset
 
@@ -11833,7 +11839,17 @@ Up brace:
 \end_layout
 
 \begin_layout Standard
-Down brace: 
+
+\change_deleted -712698321 1593242281
+Down
+\change_inserted -712698321 1593242282
+Up
+\change_unchanged
+ brace
+\change_inserted -712698321 1593242378
+ (= opened upwards)
+\change_unchanged
+: 
 \begin_inset space \upbracefill{}
 \end_inset
 
diff --git a/lib/doc/de/UserGuide.lyx b/lib/doc/de/UserGuide.lyx
index 2104582..98700b5 100644
--- a/lib/doc/de/UserGuide.lyx
+++ b/lib/doc/de/UserGuide.lyx
@@ -8638,12 +8638,10 @@ Unformatiert
 \end_layout
 
 \begin_layout Verbatim
-
 Dies ist Unformatiert.
 \end_layout
 
 \begin_layout Verbatim
-
 Die folgenden 2 Zeilen sind leer:
 \end_layout
 
@@ -8656,7 +8654,6 @@ Die folgenden 2 Zeilen sind leer:
 \end_layout
 
 \begin_layout Verbatim
-
 Fast alles ist in Unformatiert erlaubt:"%&$§#~'`
 \backslash
 }][{|
@@ -8680,7 +8677,6 @@ Unformatiert
 \end_layout
 
 \begin_layout Verbatim*
-
 Dies ist Unformatiert*.
 \end_layout
 
@@ -11913,7 +11909,7 @@ Rechtspfeil:
 \end_layout
 
 \begin_layout Standard
-Klammer oben: 
+Klammer unten (= nach unten geöffnet): 
 \begin_inset space \downbracefill{}
 \end_inset
 
@@ -11925,7 +11921,7 @@ Klammer oben:
 \end_layout
 
 \begin_layout Standard
-Klammer unten: 
+Klammer oben (= nach oben geöffnet): 
 \begin_inset space \upbracefill{}
 \end_inset