modify file extension

.readthedocs.yml

@@ -1,26 +0,0 @@
-# .readthedocs.yml
-# 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
-  tools:
-    python: "3.7"
-
-# Build documentation in the docs/ directory with Sphinx
-sphinx:
-  configuration: docs/conf.py
-
-# Build all formats
-formats: all
-
-# Optionally set the version of Python and requirements required to build your docs
-python:
-  install:
-    - requirements: docs/requirements.txt
-    - method: pip
-      path: .