chore: Update README.md with PyPI version badge

README.md

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 # cnparser  
-[![Test](https://github.com/new-village/cnparser/actions/workflows/test.yaml/badge.svg)](https://github.com/new-village/cnparser/actions/workflows/test.yaml)  
+[![Test](https://github.com/new-village/cnparser/actions/workflows/test.yaml/badge.svg)](https://github.com/new-village/cnparser/actions/workflows/test.yaml)
+![PyPI - Version](https://img.shields.io/pypi/v/cnparser)
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 **cnparser** is a python library for loading and enrichment [Corporate Number Publication Site](https://www.houjin-bangou.nta.go.jp/en/) data that is provided from National Tax Agency Japan. cnparser only support to parse latest data now.   
 
 ## Installation