Update vector-database.md

Author: wmwxwa

articles/cosmos-db/vector-database.md

@@ -55,8 +55,9 @@ Use the native vector search feature in [Azure Cosmos DB for MongoDB vCore](mong
 - [Python notebook tutorial - Azure product chatbot](https://github.com/microsoft/AzureDataRetrievalAugmentedGenerationSamples/tree/main/Python/CosmosDB-MongoDB-vCore)
 - [Python notebook tutorial - Vector database integration through LangChain](https://python.langchain.com/docs/integrations/vectorstores/azure_cosmos_db)
 - [Python notebook tutorial - LLM Caching integration through LangChain](https://python.langchain.com/docs/integrations/llms/llm_caching#azure-cosmos-db-semantic-cache)
+- [Python - LlamaIndex integration](https://docs.llamaindex.ai/en/stable/examples/vector_stores/AzureCosmosDBMongoDBvCoreDemo.html)
 - [Python - Semantic Kernel memory integration](https://github.com/microsoft/semantic-kernel/tree/main/python/semantic_kernel/connectors/memory/azure_cosmosdb)
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+  
 ## Implement vector database functionalities using our API for PostgreSQL
 
 Use the native vector search feature in [Azure Cosmos DB for PostgreSQL](postgresql/howto-use-pgvector.md), which offers an efficient way to store, index, and search high-dimensional vector data directly alongside other application data. This approach removes the necessity of migrating your data to costlier alternative vector databases and provides a seamless integration of your AI-driven applications.
@@ -71,6 +72,8 @@ The native vector search feature in our NoSQL API is under development. In the m
 
 ### Vector database implementation code samples
 
+- [.NET tutorial - Build and Modernize AI Applications](https://github.com/Azure/Build-Modern-AI-Apps-Hackathon)
+- [.NET tutorial - Bring Your Data to ChatGPT](https://github.com/Azure/Vector-Search-AI-Assistant/tree/cognitive-search-vector)
 - [.NET tutorial - recipe chatbot](https://github.com/microsoft/AzureDataRetrievalAugmentedGenerationSamples/tree/main/C%23/CosmosDB-NoSQL_CognitiveSearch)
 - [.NET tutorial - recipe chatbot w/ Semantic Kernel](https://github.com/microsoft/AzureDataRetrievalAugmentedGenerationSamples/tree/main/C%23/CosmosDB-NoSQL_CognitiveSearch_SemanticKernel)
 - [Python notebook tutorial - Azure product chatbot](https://github.com/microsoft/AzureDataRetrievalAugmentedGenerationSamples/tree/main/Python/CosmosDB-NoSQL_CognitiveSearch)