docs(README.md): add Reddit community badge

README.md

@@ -8,6 +8,7 @@
 [![NPM Version](https://img.shields.io/npm/v/opentrader?color=blue)](https://www.npmjs.com/package/opentrader)
 [![GitHub commit activity](https://img.shields.io/github/commit-activity/m/bludnic/opentrader)](https://github.com/bludnic/opentrader/graphs/contributors)
 [![Static Badge](https://img.shields.io/badge/Discord-white?logo=Discord)](https://discord.gg/RS7y3ffvvG)
+[![Static Badge](https://img.shields.io/badge/Reddit-white?logo=Reddit)](https://www.reddit.com/r/OpenTrader)
 [![Static Badge](https://img.shields.io/badge/Telegram-white?logo=Telegram)](https://t.me/+cJLNxLSjcW83Njgy)
 
 [OpenTrader](https://github.com/bludnic/opentrader) is an advanced cryptocurrency trading bot offering high-frequency, cross-exchange arbitrage and event-based strategies, including technical analysis with indicators. Features a user-friendly management UI, robust backtesting capabilities, and support for 100+ exchanges via CCXT.