Add badges

Author: pashagolub

README.md

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+[![License: MIT](https://img.shields.io/badge/License-MIT-green.svg)](https://opensource.org/licenses/MIT)
+[![Release](https://img.shields.io/github/release/cybertec-postgresql/patroni-windows-packaging.svg)](https://github.com/cybertec-postgresql/patroni-windows-packaging/releases/latest)
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 # patroni-windows-packaging
 Automate installing and launching of Patroni under Windows