[demo] Write creative dynamic information graph based on VStory #204
Description
Requirements: Use VStory API to create dynamic information graph
demo: https://www.visactor.com/vstory/example
Tutorial:https://www.visactor.com/vstory/guide/tutorial_docs/VStory_Website_Guide
要求：使用VStory的API创建动态信息图。
demo：https://www.visactor.com/vstory/example
教程：https://www.visactor.com/vstory/guide/tutorial_docs/VStory_Website_Guide
how to contribute: https://www.visactor.com/vstory/contributing/4-How%20to%20Contribute%20to%20a%20Demo