Add DOF descriptions mod to doc builder

doc/index.rst

@@ -7,6 +7,7 @@ Contents:
     :maxdepth: 2
 
     discretization
+    dof_desc
     symbolic
     misc
     🚀 Github <https://github.com/inducer/grudge>

grudge/dof_desc.py

@@ -32,9 +32,6 @@ from meshmode.mesh import \
 
 
 __doc__ = """
-DOF description
-^^^^^^^^^^^^^^^
-
 .. autoclass:: DTAG_SCALAR
 .. autoclass:: DTAG_VOLUME_ALL
 .. autoclass:: DTAG_BOUNDARY

grudge/symbolic/operators.py

@@ -92,12 +92,12 @@ class Operator(pymbolic.primitives.Expression):
     """
     .. attribute:: dd_in
 
-        an instance of :class:`~grudge.sym.DOFDesc` describing the
+        an instance of :class:`~grudge.dof_desc.DOFDesc` describing the
         input discretization.
 
     .. attribute:: dd_out
 
-        an instance of :class:`~grudge.sym.DOFDesc` describing the
+        an instance of :class:`~grudge.dof_desc.DOFDesc` describing the
         output discretization.
     """