Update sphinx with recommonmark (#52)

#50 (comment)

conf.py

@@ -2,7 +2,7 @@
 #
 # This file only contains a selection of the most common options. For a full
 # list see the documentation:
-# http://www.sphinx-doc.org/en/master/config
+# https://www.sphinx-doc.org/en/master/usage/configuration.html
 
 # -- Path setup --------------------------------------------------------------
 
@@ -34,7 +34,8 @@
 # extensions coming with Sphinx (named 'sphinx.ext.*') or your custom
 # ones.
 extensions = [
-    "sphinx_rtd_theme",
+	"sphinx_rtd_theme",
+	'recommonmark'
 ]
 
 # Add any paths that contain templates here, relative to this directory.
@@ -59,3 +60,5 @@
 html_static_path = ['_static']
 
 master_doc = 'index'
+
+source_suffix = ['.rst', '.md']