[gnome-boxes] Add translator comments to the .desktop file

[Piotr Drąg <piotrdrag src gnome org>]

commit 55f1f002866473d325943e01ea0ac8d5cfa03969
Author: Piotr Drąg <piotrdrag gmail com>
Date:   Mon Jul 17 17:29:50 2017 +0200

    Add translator comments to the .desktop file
    
    So hopefully we get fewer invalid translations that possibly break build.

 data/org.gnome.Boxes.desktop.in.in |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)
---
diff --git a/data/org.gnome.Boxes.desktop.in.in b/data/org.gnome.Boxes.desktop.in.in
index c0df280..9294f12 100644
--- a/data/org.gnome.Boxes.desktop.in.in
+++ b/data/org.gnome.Boxes.desktop.in.in
@@ -2,8 +2,10 @@
 Name=Boxes
 GenericName=Virtual machine viewer/manager
 Comment=View and use virtual machines
+# Translators: Search terms to find this application. Do NOT translate or localize the semicolons! The list 
MUST also end with a semicolon!
 Keywords=virtual machine;vm;
 Exec=gnome-boxes %U
+# Translators: Do NOT translate or transliterate this text (this is an icon file name)!
 Icon=gnome-boxes
 Terminal=false
 Type=Application