Initial commit - e2e-rag-using-bedrock-kb-cdk

[ssinghgai]

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Description of changes:

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[mttanke]

@mani-aiml , any thing missing to merge this one?

[rsgrewal-aws]

Please re do this PR following the new layout and the process for creating the required file . We request all files to have a presence on the Cookbook / Recipes Website which is fronting this github repo now. Some of the mandatory sections of the notebook need to include

• Overview.
• What are we demonstrating .
• What use case .
• What will you learn.
• What is the architectural pattern and why we select this. With a diagram
• What are the libraries to install
• What model did we choose and why this model
• Every cell needs to have a markup