STYLE: make sampledPlane note doxygen-compatible

src/sampling/sampledSurface/sampledPlane/sampledPlane.H

@@ -27,7 +27,8 @@ Class
 Description
     A sampledSurface defined by a cuttingPlane. Always triangulated.
 
-    Note: does not actually cut until update() called.
+Note
+    Does not actually cut until update() called.
 
 SourceFiles
     sampledPlane.C