RTD config

Author: cjw296

.readthedocs.yml

@@ -0,0 +1,10 @@
+version: 2
+python:
+  version: 3.8
+  install:
+    - method: pip
+      path: .
+      extra_requirements:
+        - docs
+sphinx:
+  fail_on_warning: true

setup.py

@@ -42,6 +42,7 @@
     python_requires=">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*, !=3.4.*, !=3.5.*",
     extras_require=dict(
         test=['pytest', 'pytest-cov'],
+        docs=['sphinx'],
         build=['wheel', 'twine']
     )
 )