Update sphinx from 1.5.3 to 1.5.4 (#34)

pyup-bot · tony · commit 463aa5905767 · 2017-04-02T08:40:04.000-05:00
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==1.5.3
+sphinx==1.5.4
 alabaster==0.7.10
