Revise breif of the geom::mc and geom::morton namespaces

src/geom/marching-cubes.hpp

@@ -24,7 +24,7 @@
 
 namespace geom {
 
-/// Functions and constants related to the marching cubes (MC) algorithm.
+/// Marching cubes (MC) algorithm functions and constants.
 namespace mc {
 
 /**

src/geom/morton.hpp

@@ -25,7 +25,7 @@
 
 namespace geom {
 
-/// Functions which encode or decode Morton location codes.
+/// Morton location code encoding and decoding functions.
 namespace morton {
 
 /// Encodes 2D coordinates as a 32-bit Morton location code.