Update readthedocs/doc_builder/exceptions.py
Update readthedocs/doc_builder/exceptions.py

Co-Authored-By: Eric Holscher <304be7ac57ea7c580b82b67ce8c0f8921a24092b@users.noreply.github.com>
rtfd/readthedocs.org,rtfd/readthedocs.org,rtfd/readthedocs.org,rtfd/readthedocs.org