Index: doc/source/conf.py
===================================================================
--- doc/source/conf.py	(revision 55474303e5251a0885391f64d2999489be5196fd)
+++ doc/source/conf.py	(revision 2a19d78092d43c92dae9cc0d315e949a16351f9b)
@@ -43,4 +43,5 @@
     'sphinx.ext.autodoc',
     'sphinx.ext.viewcode',
+    'sphinx.ext.napoleon',
 ]