[gnome-calculator] help: There is no 'Calculator' menu anymore in 3.34

[Andre Klapper <aklapper src gnome org>]

commit 7e70ecd36a8e985be69dbe2f7dc7d57eee77d53e
Author: Andre Klapper <a9016009 gmx de>
Date:   Thu Nov 28 00:43:18 2019 +0100

    help: There is no 'Calculator' menu anymore in 3.34

 help/C/boolean.page        | 3 ++-
 help/C/number-display.page | 4 +++-
 help/C/trigonometry.page   | 3 ++-
 3 files changed, 7 insertions(+), 3 deletions(-)
---
diff --git a/help/C/boolean.page b/help/C/boolean.page
index 080c28e3..0e76a076 100644
--- a/help/C/boolean.page
+++ b/help/C/boolean.page
@@ -21,7 +21,8 @@
     </p>
     <p>
     The NOT <link xref="function">function</link> inverts the bits in a number.
-    The word size is set from the <guiseq><gui>Calculator</gui><gui>Preferences</gui></guiseq> menu.
+    To set the word size, press the menu button in the top-right corner of the
+    window and select <gui style="menuitem">Preferences</gui>.
     </p>
     <example>
     <p>
diff --git a/help/C/number-display.page b/help/C/number-display.page
index 2712efbb..07ae2023 100644
--- a/help/C/number-display.page
+++ b/help/C/number-display.page
@@ -9,7 +9,9 @@
        <title>Result Format</title>
     
     <p>
-    The format used to display results can be changed from the 
<guiseq><gui>Calculator</gui><gui>Preferences</gui></guiseq> menu.
+    To change the format used to display results, press the menu button in the
+    top-right corner of the window and select <gui style="menuitem">Preferences</gui>.
+
     </p>
     <table>
     <tr>
diff --git a/help/C/trigonometry.page b/help/C/trigonometry.page
index 113a418d..601f8380 100644
--- a/help/C/trigonometry.page
+++ b/help/C/trigonometry.page
@@ -17,7 +17,8 @@
     </p>
     </example>
     <p>
-    The angle units used can be changed from the 
<guiseq><gui>Calculator</gui><gui>Preferences</gui></guiseq> menu.
+    To change the angle units used, press the menu button in the top-right
+    corner of the window and select <gui style="menuitem">Preferences</gui>.
     Trigonometry buttons are visible when in <link xref="mouse">Advanced mode</link>.
     </p>
     <p>