Update codebase-indexing / Ollama models added.

Added the list of embedding models for ollama.

Author: SannidhyaSah

docs/features/experimental/codebase-indexing.mdx

@@ -136,8 +136,9 @@ The indexer automatically excludes:
 - **`text-embedding-ada-002`**: Legacy model, lower cost
 
 **For Ollama:**
-- Choose models based on your hardware capabilities
-- Larger models provide better accuracy but require more resources
+- **`mxbai-embed-large`**: The largest and highest-quality embedding model. 
+- **`nomic-embed-text`**: Best balance of performance and embedding quality.
+- **`all-minilm`**: Compact model with lower quality but faster performance.
 
 ### Security Considerations
 - **API Keys**: Stored securely in VS Code's encrypted storage
@@ -185,4 +186,4 @@ Planned improvements:
 - Multi-workspace indexing
 - Enhanced filtering and configuration options
 - Team sharing capabilities
-- Integration with VS Code's native search
+- Integration with VS Code's native search