Add additional references for Azure Cosmos DB vector database in README

Author: ks6088ts

apps/3_call_azure_cosmos_db/README.md

@@ -15,3 +15,7 @@ python vector_database.py --help
 # References
 
 - [Azure Cosmos DB No SQL](https://python.langchain.com/docs/integrations/vectorstores/azure_cosmos_db_no_sql/)
+- [Learn Azure Azure Cosmos DB Vector database](https://learn.microsoft.com/azure/cosmos-db/vector-database)
+- [AzureDataRetrievalAugmentedGenerationSamples/Python/CosmosDB-NoSQL_VectorSearch](https://github.com/microsoft/AzureDataRetrievalAugmentedGenerationSamples/tree/main/Python/CosmosDB-NoSQL_VectorSearch)
+- [Azure Cosmos DB ベクター検索機能と RAG の実装ガイド](https://note.com/generativeai_new/n/n3fcb2e57d195)
+- [Azure CosmosDB for NoSQL でベクトル検索しよう！！](https://zenn.dev/nomhiro/articles/cosmos-nosql-vector-search)