Merge pull request #189 from datalad/rtd

Add readthedocs config, needed for a while now

readthedocs.yml

@@ -0,0 +1,26 @@
+# .readthedocs.yaml
+# Read the Docs configuration file
+# See https://docs.readthedocs.io/en/stable/config-file/v2.html for details
+
+# Required
+version: 2
+
+# Set the version of Python and other tools you might need
+build:
+  os: ubuntu-20.04
+  tools:
+    python: "3.9"
+
+# Build documentation in the docs/ directory with Sphinx
+sphinx:
+   configuration: docs/source/conf.py
+
+
+formats: all
+
+# Optionally declare the Python requirements required to build your docs
+python:
+  install:
+    - path: .
+      method: pip
+    - requirements: requirements-devel.txt