r.buildvrt manual: Sponsored by mundialis

git-svn-id: https://svn.osgeo.org/grass/grass/trunk@74319 15284696-431f-4ddb-bdfa-cd5b030d7da7

raster/r.buildvrt/r.buildvrt.html

@@ -60,7 +60,8 @@ The equivalent GDAL utility
 
 <h2>AUTHOR</h2>
 
-Markus Metz
+Markus Metz<br>
+Sponsored by <a href="https://www.mundialis.de">mundialis</a>
 
 <p>
 <i>Last changed: $Date$</i>