Update README.md

yjg30737 · web-flow · commit add4070b2ee2 · 2023-01-13T11:18:56.000+09:00
diff --git a/README.md b/README.md
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 # pyqt-plotly-example
 PyQt application which shows the plotly map  
+
+## Requirements
+* plotly
+
+## How to Use
+1. git clone ~
+2. python main.py
+
+## Preview
+![image](https://user-images.githubusercontent.com/55078043/212221927-b16a026f-f2a1-4bfd-8e7f-c853531dfbeb.png)
+
