Merge pull request #1052 from adamtheturtle/pyup-update-sphinx-2.1.2-to-2.2.0

Update sphinx to 2.2.0

Author: adamtheturtle

dev-requirements.txt

@@ -20,7 +20,7 @@ pyroma==2.5  # Packaging best practices checker
 pytest-cov==2.7.1  # Measure code coverage
 pytest==5.0.1  # Test runners
 PyYAML==5.1.2
-Sphinx==2.1.2
+Sphinx==2.2.0
 sphinx-autodoc-typehints==1.7.0
 sphinxcontrib-spelling==4.3.0
 twine==1.13.0