now readthedocs also uses toml based setup

.readthedocs.yaml

@@ -1,17 +1,29 @@
+# Read the Docs configuration file for Sphinx projects
+# See https://docs.readthedocs.io/en/stable/config-file/v2.html for details
+
+# Required
 version: 2
 
+# Set the OS, Python version and other tools needed
 build:
-  os: "ubuntu-20.04"
+  os: ubuntu-22.04
   tools:
-    python: "mambaforge-4.10"
-
-conda:
-  environment: env-cpu.yml
+    python: "3.10"
 
+# Build documentation in the "docs/" directory with Sphinx
 sphinx:
   builder: html
   configuration: docs/source/conf.py
 
+# Build the docs in additional formats such as PDF and ePub
 formats:
-  - pdf
-  - epub
+   - pdf
+   - epub
+
+# Declare the Python requirements required to build your documentation
+python:
+   install:
+   - method: pip
+     path: .
+     extra_requirements:
+       - doc