Update the README.md

Author: DSoftwareArtist

README.md

@@ -23,100 +23,3 @@
 - **PDF Parsing:** PyPDF2 >=3.0.0
 
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-
-## 3. Functionality Specification
-
-### Core Features
-
-#### 3.1 Database Connection Management
-
-- Add PostgreSQL database connections with connection details
-- Test database connectivity
-- Store connection configurations securely
-- Support multiple database connections
-
-#### 3.2 Schema Introspection
-
-- Automatically fetch table names and column information
-- Store schema in PostgreSQL with pgvector for semantic search
-- Support uploading schema documentation (PDF)
-
-#### 3.3 Natural Language to SQL
-
-- Accept natural language queries
-- Use LLM to convert natural language to SQL
-- Support SELECT, INSERT, UPDATE, DELETE operations
-- Include validation and error handling
-
-#### 3.4 Semantic Schema Search
-
-- Embed schema documentation using sentence-transformers
-- Store embeddings in pgvector
-- Search schema semantically to find relevant tables/columns
-
-#### 3.5 Query Execution
-
-- Execute generated SQL against target database
-- Return formatted results
-- Handle errors gracefully with user-friendly messages
-
-#### 3.6 Query History
-
-- Store all queries with timestamps
-- View past queries and their results
-- Re-run previous queries
-
-### User Interactions
-
-1. **Add Database:** User enters connection details → System tests connection → Saves if successful
-2. **Ask Question:** User types natural language → System generates SQL → User reviews → Executes → Views results
-3. **Search Schema:** User enters search term → System returns semantically similar schema elements
-4. **Upload Docs:** User uploads PDF → System extracts text → Embeds and stores in vector DB
-
-### Data Handling
-
-- Query history stored in SQLite (local)
-- Database connections stored encrypted
-- Schema embeddings stored in PostgreSQL via pgvector
-
-### Edge Cases
-
-- Invalid SQL generated → Show error with suggestion to retry
-- Database connection failed → Show connection error with troubleshooting tips
-- Empty results → Show "No results found" message
-- Large result sets → Paginate results
-- Network timeout → Show timeout error with retry option
-
----
-
-## 4. API Endpoints
-
-| Method | Endpoint                      | Description                    |
-| ------ | ----------------------------- | ------------------------------ |
-| GET    | /api/connections/             | List all database connections  |
-| POST   | /api/connections/             | Add new database connection    |
-| GET    | /api/connections/{id}/        | Get connection details         |
-| PUT    | /api/connections/{id}/        | Update connection              |
-| DELETE | /api/connections/{id}/        | Delete connection              |
-| POST   | /api/connections/{id}/test/   | Test connection                |
-| GET    | /api/connections/{id}/schema/ | Get database schema            |
-| POST   | /api/query/                   | Execute natural language query |
-| GET    | /api/history/                 | Get query history              |
-| POST   | /api/docs/                    | Upload schema document         |
-| GET    | /api/docs/                    | List schema documents          |
-| POST   | /api/docs/search/             | Semantic search in documents   |
-
----
-
-## 5. Acceptance Criteria
-
-1. ✓ User can add PostgreSQL database connections
-2. ✓ User can test database connectivity
-3. ✓ User can enter natural language queries
-4. ✓ System generates valid SQL from natural language
-5. ✓ User can execute queries and view results
-6. ✓ User can upload PDF schema documentation
-7. ✓ System performs semantic search over schema docs
-8. ✓ Query history is maintained
-9. ✓ Web interface is responsive and functional
-10. ✓ Error handling provides helpful feedback