chore(pip): Upgrade to latest version

KaiSchwarz-cnic · web-flow · commit 312fa300d396 · 2018-10-31T09:44:34.000+01:00
diff --git a/requirements.txt b/requirements.txt
@@ -9,4 +9,5 @@ six==1.11.0
 Sphinx==1.7.5
 sphinxcontrib-log-cabinet==1.0.0
 sphinxcontrib-websupport==1.1.0
-twine==1.11.0
+twine==1.11.0
+pip==18.1
