added .reathedocs.yaml

Overview

Readthedocs website requires the repo have .readthedocs.yaml config file, otherwise the build will fail. (Monday, September 25, 2023: Fully remove support for building documentation without configuration file v2.) ref: https://blog.readthedocs.com/migrate-configuration-v2/

Solution

Modified the minimal config file example in https://blog.readthedocs.com/migrate-configuration-v2/, and verified with a dummy website.

How I verified

• Using dummy repo: https://code.arm.gov/kefeimo/docs (branch: main)
• Rendered site: https://adi-doc-kefei.readthedocs.io/en/latest/

Discussion

It is also recommended to have requirements.txt file. The dependencies being tested are

• Python = 3.10.6
• Sphinx = 7.2.2