Add ReadTheDocs config, separate docs dependencies

Author: duckontheweb

.readthedocs.yaml

@@ -0,0 +1,19 @@
+# .readthedocs.yaml
+# Read the Docs configuration file
+# See https://docs.readthedocs.io/en/stable/config-file/v2.html for details
+
+version: 2
+
+formats:
+  - pdf
+  - epub
+
+python:
+  version: "3.7"
+  install:
+    - requirements: requirements-docs.txt
+    - method: pip
+      path: .
+
+sphinx:
+  fail_on_warning: false

requirements-dev.txt

@@ -1,8 +1,2 @@
-ipython==7.25.0
-Sphinx==4.1.0
-sphinxcontrib-fulltoc==1.2.0
-nbsphinx==0.8.6
-
-jinja2<4.0
-
+-r ./requirements-docs.txt
 -r ./requirements-test.txt

requirements-docs.txt

@@ -0,0 +1,6 @@
+ipython==7.25.0
+Sphinx==4.1.0
+sphinxcontrib-fulltoc==1.2.0
+nbsphinx==0.8.6
+
+jinja2<4.0