lib/init/helptext: start-up screen fig updated and Download button explained

git-svn-id: https://svn.osgeo.org/grass/grass/trunk@71726 15284696-431f-4ddb-bdfa-cd5b030d7da7

lib/init/helptext.html

@@ -42,6 +42,9 @@ See the "Location Wizard"&nbsp;<img src="circle_4.png" alt="[(4)]"> to
 easily create a new LOCATION from scratch from a geocoded file, by
 defining the parameters or by selecting the corresponding EPSG projection
 code.
+<p>
+See&nbsp;<img src="circle_5.png" alt="[(5)]"> to directly download a
+sample LOCATION into the DATABASE. 
 
 <h3><img src="circle_3.png" alt="[(3)]">&nbsp;Selecting the MAPSET (a subproject)</h3>
 
@@ -58,7 +61,15 @@ projections. You can also create new LOCATION easily from a georeferenced
 data file (e.g., SHAPE file or GeoTIFF, see below).  Find below also some
 rules to define the default raster resolution for a new LOCATION.
 
-<h3><img src="circle_5.png" alt="[(5)]">&nbsp;Start GRASS</h3>
+<h3><img src="circle_5.png" alt="[(5)]">&nbsp;Download a sample LOCATION</h3>
+
+In the "Location Wizard" there is also a Download button that allows you to
+directly download a ready-to-use LOCATION into the DATABASE. You can
+choose among different sample LOCATIONS that are currently available at the
+<a href="https://grass.osgeo.org/download/sample-data/">Download</a>
+section in the GRASS GIS website.
+
+<h3><img src="circle_6.png" alt="[(6)]">&nbsp;Start GRASS</h3>
 
 Once you have selected an existing LOCATION/MAPSET or defined a new
 one, you can enter GRASS. The graphical user interface