Update .readthedocs.yaml

Signed-off-by: Arthur She <arthur.she@linaro.org>
Change-Id: Ifb5eb670e33f304060b4f3aed381c17e648cc840
diff --git a/.readthedocs.yaml b/.readthedocs.yaml
index aa04d3a..f89fc90 100644
--- a/.readthedocs.yaml
+++ b/.readthedocs.yaml
@@ -1,32 +1,32 @@
-# Copyright (c) 2023, Arm Limited. All rights reserved
-#
-# SPDX-License-Identifier: BSD-3-Clause
-#
-# Configuration file for the readthedocs deploy
-# Available at https://trustedfirmware-a.readthedocs.io/en/latest/
+# .readthedocs.yaml
+# Read the Docs configuration file
+# See https://docs.readthedocs.io/en/stable/config-file/v2.html for details
 
-
-# readthedocs config version
+# Required
 version: 2
 
+# Set the OS, Python version and other tools you might need
 build:
-  os: ubuntu-22.04 # Ubuntu Jammy LTS
+  os: ubuntu-22.04
   tools:
-    python: "3.10"
-#  apt_packages:
-#    - plantuml
-#    - librsvg2-bin
-#  jobs:
-#    post_create_environment:
-#      - pip install poetry=="1.3.2"
-#      - poetry config virtualenvs.create false
-#    post_install:
-#      - poetry install --with doc
+    python: "3.12"
+    # You can also specify other tool versions:
+    # nodejs: "19"
+    # rust: "1.64"
+    # golang: "1.19"
 
+# Build documentation in the "docs/" directory with Sphinx
 sphinx:
   configuration: docs/conf.py
 
-# Auxiliary formats to export to (in addition to the default HTML output).
-formats:
-  - pdf
+# Optionally build your docs in additional formats such as PDF and ePub
+# formats:
+#    - pdf
+#    - epub
 
+# Optional but recommended, declare the Python requirements required
+# to build your documentation
+# See https://docs.readthedocs.io/en/stable/guides/reproducible-builds.html
+# python:
+#    install:
+#    - requirements: docs/requirements.txt