Add Semantic Search Setup to Documentation

[SarahE-Dev]

✅ Add Semantic Search Setup to Documentation

Title: Add Semantic Search Integration Details to Project Documentation

User Story:

As a developer or contributor, I want clear documentation on how Semantic Search is integrated into the project, so that I can understand, run, and contribute to it without confusion.

Acceptance Criteria:

• The README includes a high-level overview of the Semantic Search feature and its purpose.
• Instructions are provided for setting up dependencies (sentence-transformers, etc.).
• Sample usage or API endpoint documentation (if applicable) is included.
• Docker-specific steps (if any) are explained clearly (e.g., docker compose up --build).
• Any environment variables or configuration files related to Semantic Search are documented.

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