Fix .readthedocs.yaml (#303)

.readthedocs.yaml

@@ -1,26 +1,20 @@
-# .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-22.04
+  os: "ubuntu-22.04"
   tools:
     python: "3.10"
   jobs:
     post_create_environment:
       # Install poetry
       # https://python-poetry.org/docs/#installing-manually
-      - curl -sSL https://install.python-poetry.org | python -
+      - pip install poetry
       # Tell poetry to not use a virtual environment
       - poetry config virtualenvs.create false
     post_install:
       # Install dependencies with 'docs' dependency group
       # https://python-poetry.org/docs/managing-dependencies/#dependency-groups
       - poetry install --with docs
-# Build documentation in the docs/ directory with Sphinx
+
 sphinx:
-   configuration: docs/conf.py
+  configuration: docs/conf.py