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7f17ce37 - SingleStoreDBChatMessageHistory: Add jupiter notebook with usage example (#11941)

SingleStoreDBChatMessageHistory: Add jupiter notebook with usage example (#11941) The Docs folder changed its structure, and the notebook example for SingleStoreDChatMessageHistory has not been copied to the new place due to a merge conflict. Adding the example to the correct place. Co-authored-by: Volodymyr Tkachuk <vtkachuk-ua@singlestore.com>