[simple-scan] Add translator comments to the .desktop file

[Piotr Drąg <piotrdrag src gnome org>]

commit f05244a1e8a0bfeab510fdd2dda7ea88b31e838d
Author: Piotr Drąg <piotrdrag gmail com>
Date:   Thu Apr 27 12:32:16 2017 +0200

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

 data/simple-scan.desktop.in |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)
---
diff --git a/data/simple-scan.desktop.in b/data/simple-scan.desktop.in
index 89edeb2..98deb0d 100644
--- a/data/simple-scan.desktop.in
+++ b/data/simple-scan.desktop.in
@@ -2,8 +2,10 @@
 Name=Simple Scan
 GenericName=Document Scanner
 Comment=Scan Documents
+# Translators: Search terms to find this application. Do NOT translate or localize the semicolons! The list 
MUST also end with a semicolon!
 Keywords=scan;scanner;flatbed;adf;
 Exec=simple-scan
+# Translators: Do NOT translate or transliterate this text (this is an icon file name)!
 Icon=scanner
 Terminal=false
 Type=Application