Added Description to surfaceFeatures and surfaceFeatureExtract

applications/utilities/surface/surfaceFeatureExtract/surfaceFeatureExtract.C

@@ -21,6 +21,10 @@ License
     You should have received a copy of the GNU General Public License
     along with OpenFOAM.  If not, see <http://www.gnu.org/licenses/>.
 
+Description
+    Identifies features in a surface geometry and writes them to file.
+    This utility is deprecated, having been replaced by surfaceFeatures
+
 \*---------------------------------------------------------------------------*/
 
 #include "argList.H"