v.overlay manual: speedup sponsored by mundialis

git-svn-id: https://svn.osgeo.org/grass/grass/trunk@74318 15284696-431f-4ddb-bdfa-cd5b030d7da7

vector/v.overlay/v.overlay.html

@@ -273,7 +273,8 @@ v.overlay ainput=roadsmajor atype=line binput=raleigh out=roadsmajor_raleigh ope
 <h2>AUTHORS</h2>
 
 Radim Blazek, ITC-Irst, Trento, Italy<br>
-Markus Metz
+Markus Metz<br>
+Speedup for large, complex input areas sponsored by <a href="https://www.mundialis.de">mundialis</a>
 
 <p>
 <i>Last changed: $Date$</i>