pygrass manual cosmetics (highlight)

git-svn-id: https://svn.osgeo.org/grass/grass/trunk@65094 15284696-431f-4ddb-bdfa-cd5b030d7da7

lib/python/docs/src/pygrass_vector.rst

@@ -193,7 +193,7 @@ loaded unless explicitly specified, in case they are not needed.
 Accessing a vector map's table(s) requires finding any links to tables, then
 requesting the table from each of the returned links: ::
 
-    from grass.pygrass.vector import VectorTopo
+    >>> from grass.pygrass.vector import VectorTopo
     >>> municip = VectorTopo('census')
     >>> municip.open(mode='r')
     >>> dblinks = DBlinks(municip.c_mapinfo)