Restructure docs.

docs/source/cdd.rst

@@ -75,31 +75,28 @@ Factories
 .. autofunction:: linprog_from_matrix
 .. autofunction:: polyhedron_from_matrix
 
-Functions
----------
-
-General Matrix Operations
-~~~~~~~~~~~~~~~~~~~~~~~~~
+Basic Operations
+----------------
 
 .. autofunction:: matrix_append_to
 .. autofunction:: matrix_copy
 .. autofunction:: matrix_rank
 
 Adjacency
-~~~~~~~~~
+---------
 
 .. autofunction:: matrix_adjacency
 .. autofunction:: matrix_weak_adjacency
 
 Canonicalization
-~~~~~~~~~~~~~~~~
+----------------
 
 .. autofunction:: matrix_canonicalize
 .. autofunction:: matrix_canonicalize_linearity
 .. autofunction:: matrix_redundancy_remove
 
 Redundancy Checks
-~~~~~~~~~~~~~~~~~
+-----------------
 
 .. autofunction:: redundant
 .. autofunction:: s_redundant
@@ -110,12 +107,12 @@ Redundancy Checks
 .. autofunction:: implicit_linearity_rows
 
 Linear Programming
-~~~~~~~~~~~~~~~~~~
+------------------
 
 .. autofunction:: linprog_solve
 
-Double Description Method
-~~~~~~~~~~~~~~~~~~~~~~~~~
+Polyhedron Operations
+---------------------
 
 .. autofunction:: copy_input
 .. autofunction:: copy_output
@@ -127,7 +124,7 @@ Double Description Method
 .. autofunction:: copy_input_incidence
 
 Elimination
-~~~~~~~~~~~
+-----------
 
 .. autofunction:: fourier_elimination
 .. autofunction:: block_elimination