UDF Example with Markdown Text Splitting

[jioffe502]

Description

This introduces the first production example for our new UDF/Lambda implementations, featuring a structural text splitter UDF that demonstrates how to extend the NV-Ingest pipeline with custom processing logic for markdown documents.

We've created comprehensive documentation and examples showing UDF usage across CLI, Python API, and pipeline integration to showcase the functionality's usefulness for custom document processing tasks.

One note is that the final location for customer UDFs remains under discussion. Notebook for a full detailed example will be coming as well.

Checklist

• I am familiar with the Contributing Guidelines.
• New or existing tests cover these changes.
• The documentation is up to date with these changes.
• If adjusting docker-compose.yaml environment variables have you ensured those are mimicked in the Helm values.yaml file.

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