Merge pull request #50 from mongodb-developer/parent_doc_langchain

Adds LangChain parent document retriever example

Author: ajosh0504

README.md

@@ -38,7 +38,7 @@ This section contains examples of use cases that are commonly seen in industry-f
 | **Trip Advisor - Laravel, OpenAI and Atlas** | PHP (Laravel), OpenAI, MongoDB |  [![GitHub](https://img.shields.io/badge/GitHub-View_on_GitHub-blue?logo=GitHub)](https://github.com/mongodb-developer/laravel-openai-vector-search)|Leverage PHP, Laravel and OpenAI to build suphisticated recommendation engines|
 | **MongoDB AI Framework** | Key AI Stack components|[![GitHub](https://img.shields.io/badge/GitHub-View_on_GitHub-blue?logo=GitHub)](https://github.com/mongodb-partners/maap-framework) | The MAAP framework is a set of libraries that you can use to build your RAG Application using MongoDB and Atlas Vector Search and associated MAAP partners |
 | **MongoDB and BuildShip Agents** | MongoDB Atlas, BuildShip low-code, Anthropic | [![GitHub](https://img.shields.io/badge/GitHub-View_on_GitHub-blue?logo=GitHub)](https://github.com/mongodb-developer/GenAI-Showcase/blob/main/snippets/low-code/BuildShip.md) | This guide demonstrates how to create an AI agent for handling rental booking workflows using BuildShip's no-code platform with MongoDB Aggregation and Insert integrations. |
-| **Realtime Voice OpenAI API and Atlas Vector Search Rental Agent** |  OpenAI, Atlas , Python , React | [![GitHub](https://img.shields.io/badge/GitHub-View_on_GitHub-blue?logo=GitHub)](https://github.com/mongodb-developer/voice-openai-mongo-rentals-agent?tab=readme-ov-file)|Sample application that use OpenAI Realtime API and MongoDB Atlas vector/CRUD as tools for a full voice based rental assistant. | 
+| **Realtime Voice OpenAI API and Atlas Vector Search Rental Agent** |  OpenAI, Atlas , Python , React | [![GitHub](https://img.shields.io/badge/GitHub-View_on_GitHub-blue?logo=GitHub)](https://github.com/mongodb-developer/voice-openai-mongo-rentals-agent?tab=readme-ov-file)|Sample application that use OpenAI Realtime API and MongoDB Atlas vector/CRUD as tools for a full voice based rental assistant. |
 
 
 ## Evaluations