Update multigrid.rst

Author: harpolea

docs/source/multigrid.rst

@@ -9,32 +9,32 @@ multigrid package
 Submodules
 ----------
 
-multigrid.MG module
--------------------
+multigrid\.MG module
+--------------------
 
 .. automodule:: multigrid.MG
     :members:
     :undoc-members:
     :show-inheritance:
 
-multigrid.edge\_coeffs module
------------------------------
+multigrid\.edge\_coeffs module
+------------------------------
 
 .. automodule:: multigrid.edge_coeffs
     :members:
     :undoc-members:
     :show-inheritance:
 
-multigrid.general\_MG module
-----------------------------
+multigrid\.general\_MG module
+-----------------------------
 
 .. automodule:: multigrid.general_MG
     :members:
     :undoc-members:
     :show-inheritance:
 
-multigrid.variable\_coeff\_MG module
-------------------------------------
+multigrid\.variable\_coeff\_MG module
+-------------------------------------
 
 .. automodule:: multigrid.variable_coeff_MG
     :members: