Update sphinx from 1.5.4 to 1.5.5 (#35)

pyup-bot · tony · commit dc64acb54f1f · 2017-04-05T18:28:01.000-05:00
diff --git a/requirements/doc.txt b/requirements/doc.txt
@@ -1,4 +1,4 @@
 docutils==0.13.1
 releases==1.3.0 # updated from 1.2.0
-sphinx==1.5.4
+sphinx==1.5.5
 alabaster==0.7.10
