RTD config

Author: kevin-bates

.gitignore

@@ -131,3 +131,6 @@ dmypy.json
 
 # Pyre type checker
 .pyre/
+
+# 
+.DS_Store

.readthedocs.yml

@@ -0,0 +1,15 @@
+# Required
+version: 2
+
+# Build documentation in the docs/ directory with Sphinx
+sphinx:
+  configuration: docs/conf.py
+
+# Optionally set the version of Python and requirements required to build your docs
+python:
+  version: 3.7
+  install:
+    - method: pip
+      path: .
+      extra_requirements:
+        - docs