Merge pull request #19 from EricaWei053/add-demo

Update README.md

README.md

@@ -5,14 +5,17 @@
 ![Codecov](https://img.shields.io/codecov/c/github/EricaWei053/DataSentiment)
 [![Read the Docs](https://readthedocs.org/projects/datasentiment/badge/?version=latest)](https://datasentiment.readthedocs.io/en/latest/?badge=latest)
 
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 ## Description
 Sometimes the data analysis is a very time-consuming and dry process. 
 This platform provides an automatically statistic analysis results, cumulative return plot, 
 histogram and 3D visualization for given time-series data. The data could be ticker price or 
 profit and loss(pnl) data. The input data reqiuremtns are two columns, one column is date, 
 another one is value depending on the date. 
 
+## Demo 
+
+![](demo.gif)
+
 
 ## Usage 
 Backend mainly in Python in processing file, data, calculating values.