Add full-text-search notebook

[jennapederson]

Problem

Adding full-text-search notebook.

Solution

Adding full-text-search notebook.

Type of Change

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• This change requires a documentation update
• Infrastructure change (CI configs, etc)
• Non-code change (docs, etc)
• None of the above: (explain here)

Test Plan

Tested locally and in colab.

NOTE: commit hooks were disabled for this branch to move past some checks that are either not needed or not working. Will address these later in the week when moving away from release candidate package.

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Note

Low Risk
Low risk: adds a new educational Jupyter notebook and does not change production code paths or shared libraries.

Overview
Adds a new learn Jupyter notebook demonstrating how to implement full-text search with Pinecone, intended to be run locally or in Google Colab.

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