## Description of changes
This PR creates a new starter notebook intended to familiarize people
with the very basic, core functionality of embedding retrieval with
Chroma. It's self-contained, and hopefully straightforward and easy to
understand.
There is also a minor fix to the experimental notebook.
## Test plan
Ran the notebook, also via Colab.
## Documentation Changes
None.
## TODO
- [x] https://github.com/chroma-core/chroma/issues/880 Canonical 'chat
with your documents'
