Fix broken readthedocs script

[ptgrogan]

Docs-building command python -m sphinx -T -b html -d _build/doctrees -D language=en . $READTHEDOCS_OUTPUT/html is throwing an error due to the configuration file:

Traceback (most recent call last):
  File "/home/docs/checkouts/readthedocs.org/user_builds/tatc/envs/stable/lib/python3.10/site-packages/sphinx/config.py", line 529, in eval_config_file
    exec(code, namespace)  # NoQA: S102
  File "/home/docs/checkouts/readthedocs.org/user_builds/tatc/checkouts/stable/docs/conf.py", line 26, in <module>
    import tatc
  File "/home/docs/checkouts/readthedocs.org/user_builds/tatc/envs/stable/lib/python3.10/site-packages/tatc/__init__.py", line 5, in <module>
    from . import analysis
  File "/home/docs/checkouts/readthedocs.org/user_builds/tatc/envs/stable/lib/python3.10/site-packages/tatc/analysis/__init__.py", line 5, in <module>
    from .coverage import (
  File "/home/docs/checkouts/readthedocs.org/user_builds/tatc/envs/stable/lib/python3.10/site-packages/tatc/analysis/coverage.py", line 18, in <module>
    from ..schemas.point import Point
  File "/home/docs/checkouts/readthedocs.org/user_builds/tatc/envs/stable/lib/python3.10/site-packages/tatc/schemas/__init__.py", line 5, in <module>
    from .architecture import Architecture
  File "/home/docs/checkouts/readthedocs.org/user_builds/tatc/envs/stable/lib/python3.10/site-packages/tatc/schemas/architecture.py", line 12, in <module>
    from .satellite import (
  File "/home/docs/checkouts/readthedocs.org/user_builds/tatc/envs/stable/lib/python3.10/site-packages/tatc/schemas/satellite.py", line 19, in <module>
    from tatc.utils import (
  File "/home/docs/checkouts/readthedocs.org/user_builds/tatc/envs/stable/lib/python3.10/site-packages/tatc/utils.py", line 30, in <module>
    from . import config
  File "/home/docs/checkouts/readthedocs.org/user_builds/tatc/envs/stable/lib/python3.10/site-packages/tatc/config.py", line 86, in <module>
    rc = load_yaml_config(
  File "/home/docs/checkouts/readthedocs.org/user_builds/tatc/envs/stable/lib/python3.10/site-packages/tatc/config.py", line 74, in load_yaml_config
    raise ConfigError("Couldn't load config file (not found)")
tatc.config.ConfigError: Couldn't load config file (not found)