[gnome-games] collection-header-bar: Add mnemonics to menu

[Alexander Mikhaylenko <alexm src gnome org>]

commit 3b36ffde91a1dbe4b198c7870bd347cf10ccefe0
Author: Adwait Rawat <adwait rawat gmail com>
Date:   Wed May 8 02:29:43 2019 +0900

    collection-header-bar: Add mnemonics to menu

 data/ui/collection-header-bar.ui | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)
---
diff --git a/data/ui/collection-header-bar.ui b/data/ui/collection-header-bar.ui
index 450687ad..e9b0b7cd 100644
--- a/data/ui/collection-header-bar.ui
+++ b/data/ui/collection-header-bar.ui
@@ -109,7 +109,7 @@
         <child>
           <object class="GtkModelButton">
             <property name="can-focus">True</property>
-            <property name="text" translatable="yes">Preferences</property>
+            <property name="text" translatable="yes">Pr_eferences</property>
             <property name="action-name">app.preferences</property>
             <property name="visible">True</property>
           </object>
@@ -117,7 +117,7 @@
         <child>
           <object class="GtkModelButton">
             <property name="can-focus">True</property>
-            <property name="text" translatable="yes">Keyboard Shortcuts</property>
+            <property name="text" translatable="yes">_Keyboard Shortcuts</property>
             <property name="action-name">win.show-help-overlay</property>
             <property name="visible">True</property>
           </object>
@@ -125,7 +125,7 @@
         <child>
           <object class="GtkModelButton">
             <property name="can-focus">True</property>
-            <property name="text" translatable="yes">Help</property>
+            <property name="text" translatable="yes">_Help</property>
             <property name="action-name">app.help</property>
             <property name="visible">True</property>
           </object>
@@ -133,7 +133,7 @@
         <child>
           <object class="GtkModelButton">
             <property name="can-focus">True</property>
-            <property name="text" translatable="yes">About Games</property>
+            <property name="text" translatable="yes">_About Games</property>
             <property name="action-name">app.about</property>
             <property name="visible">True</property>
           </object>