[gnome-mines] help-overlay.ui: Add four shortcuts to Keyboard Shortcuts dialog

[Robert Roth <robertroth src gnome org>]

commit ad4feeda2039671e911c63a369760120106a2e62
Author: Sabri Ünal <libreajans gmail com>
Date:   Mon Feb 17 15:35:53 2020 +0300

    help-overlay.ui: Add four shortcuts to Keyboard Shortcuts dialog
    
    1: Game size: Small
    2: Game size: Medium
    3: Game size: Large
    4: Game size: Custom

 src/help-overlay.ui | 28 ++++++++++++++++++++++++++++
 1 file changed, 28 insertions(+)
---
diff --git a/src/help-overlay.ui b/src/help-overlay.ui
index 788b49b..5ef9bf3 100644
--- a/src/help-overlay.ui
+++ b/src/help-overlay.ui
@@ -52,6 +52,34 @@
                 <property name="title" translatable="yes" context="shortcut window">Quit</property>
               </object>
             </child>
+            <child>
+              <object class="GtkShortcutsShortcut">
+                <property name="visible">1</property>
+                <property name="accelerator">1</property>
+                <property name="title" translatable="yes" context="shortcut window">Game size: 
small</property>
+              </object>
+            </child>
+            <child>
+              <object class="GtkShortcutsShortcut">
+                <property name="visible">1</property>
+                <property name="accelerator">2</property>
+                <property name="title" translatable="yes" context="shortcut window">Game size: 
medium</property>
+              </object>
+            </child>
+            <child>
+              <object class="GtkShortcutsShortcut">
+                <property name="visible">1</property>
+                <property name="accelerator">3</property>
+                <property name="title" translatable="yes" context="shortcut window">Game size: 
large</property>
+              </object>
+            </child>
+            <child>
+              <object class="GtkShortcutsShortcut">
+                <property name="visible">1</property>
+                <property name="accelerator">4</property>
+                <property name="title" translatable="yes" context="shortcut window">Game size: 
custom</property>
+              </object>
+            </child>
           </object>
         </child>
         <child>