GRUB install page description fix

ubinstall-gtk.glade

@@ -11342,7 +11342,7 @@ separately into the selected partition.</property>
                                           <object class="GtkLabel" id="WelcomeInfoLabel22">
                                             <property name="visible">True</property>
                                             <property name="can-focus">False</property>
-                                            <property name="label" translatable="yes">Install the GRUB bootloader</property>
+                                            <property name="label" translatable="yes">Installing the GRUB bootloader into the MBR or EFI partition</property>
                                             <property name="wrap">True</property>
                                             <property name="xalign">0</property>
                                             <attributes>