Sphinx extension to enable search as you type within a full-page search UI for docs hosted on Read the Docs. Try it at https://readthedocs-sphinx-search.readthedocs.io/en/latest/?rtd_search=testing.
pip install readthedocs-sphinx-search
Add this extension in your conf.py
file as:
extensions = [
# ... other extensions here
'sphinx_search.extension',
]