grass.desktop Appdata file: keywords updated; +GenericName,URL

git-svn-id: https://svn.osgeo.org/grass/grass/branches/releasebranch_7_0@67514 15284696-431f-4ddb-bdfa-cd5b030d7da7

gui/icons/grass.desktop

@@ -1,6 +1,7 @@
 [Desktop Entry]
 Type=Application
 Name=GRASS GIS 7
+GenericName=Geographic Information System
 Comment=Geographic Information System
 Comment[cs]=Geografický Informační Systém
 Comment[de]=Geoinformationssystem
@@ -50,4 +51,5 @@ Categories=Education;Science;Geoscience;Geography;
 Exec=grass70
 Icon=grass70
 Terminal=true
-Keywords=wms;wfs;ogc;osgeo;gis;
+URL=https://grass.osgeo.org/
+Keywords=gis;spatial;geospatial;database;remote sensing;hydrology;vector;raster;visualization;maps;wms;wfs;ogc;osgeo;