DA-1253 Update Readme

[VirajAgarwal1]

No description provided.

[gemini-code-assist]

Summary of Changes

Hello @VirajAgarwal1, I'm Gemini Code Assist¹! I'm currently reviewing this pull request and will post my feedback shortly. In the meantime, here's a summary to help you and other reviewers quickly get up to speed!

This pull request focuses on enhancing the clarity and accuracy of the README.md documentation for a demo application utilizing Couchbase vector search. The changes involve a significant terminology update, renaming "FTS Vector Search" to "Search Vector Index" to align with current product naming, and ensuring all related file paths and descriptions are consistently updated. Additionally, the PR refines the explanations for Hyperscale and Composite Vector Indexes, providing clearer guidance on their use within the demo and removing redundant information to improve readability and maintainability of the documentation.

Highlights

• Terminology Update: The term "FTS Vector Search" has been consistently updated to "Search Vector Index" throughout the README to align with current product naming conventions.
• File Path Renaming: References to the Python script chat_with_pdf_with_fts.py have been updated to chat_with_pdf_with_search_vector_index.py to reflect the new terminology.
• Composite Index Clarification: The documentation now includes a clearer explanation that the demo does not directly use Composite Vector Index by default, but provides instructions on how to easily enable it.
• Documentation Cleanup: Outdated and redundant sections related to manual vector index creation and key components have been removed, streamlining the README for better readability and maintainability.
• Configuration Refinement: Descriptions for environment variable setup and automatic index creation have been adjusted to accurately reflect the distinctions between Hyperscale, Composite, and Search Vector Index types.

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[gemini-code-assist]

Code Review

This pull request updates the README file to reflect a terminology change from "FTS Vector Search" to "Search Vector Index" and clarifies the usage of different index types, particularly the Composite Vector Index. The changes improve the documentation's accuracy and clarity. I've identified a few minor typos and grammatical errors that should be addressed to further polish the document.