Index: doc/source/conf.py
===================================================================
--- doc/source/conf.py	(revision 55474303e5251a0885391f64d2999489be5196fd)
+++ doc/source/conf.py	(revision 38d2a8b322eaaac138c2e5ea103b3f7d3622dec0)
@@ -43,4 +43,5 @@
     'sphinx.ext.autodoc',
     'sphinx.ext.viewcode',
+    'sphinx.ext.napoleon',
 ]