add readme badges

Author: GuyLewin

README.md

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+[![CI](https://github.com/GuyLewin/minecraft-fancy-rcon-cli/actions/workflows/ci.yml/badge.svg)](https://github.com/GuyLewin/minecraft-fancy-rcon-cli/actions/workflows/ci.yml)
+[![Crates.io](https://img.shields.io/crates/v/minecraft-fancy-rcon-cli.svg)](https://crates.io/crates/minecraft-fancy-rcon-cli)
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 # Fancy Minecraft RCON CLI
 
 A powerful, user-friendly, and interactive command-line interface for sending RCON commands to a Minecraft server, written in Rust.