Created hcls directory and added a pdf document for the new cookbook

[davidlee-afk]

… cookbook

Cookbook Pull Request

Description

Please include a summary behind the objective of this PR and list any dependencies that are required for this change.
Do not forget to hide or delete any API KEY used.

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Type of Change

What type of PR is it?

• New Cookbook
  • Notebook File
    • Does it work on google colab?
  • Markdown File
• Cookbook Update
  • Code Refactoring
  • Bug Fix
• README.md Update

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• [ X ] Other (please describe): Adding a new hcls directory within ocr and adding a downloadable pdf required for the cookbook.

Cookbook Checklist:

• My code is easy to read and well structured.
• I've tagged the versions of any dependency required.
• I have performed a self-review of my own code.
• I have commented my code, particularly in hard-to-understand areas.
• My changes generate no new warnings or errors.

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• [ X ] My changes do not concern the cookbooks.

README.md Checklist

• I've added my cookbook to the table.

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• My changes do not concern the README file.

Additional Context

Add any other context or screenshots about the feature request here.

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