remove buy

Readme.md

@@ -78,7 +78,6 @@ And I count crypto as whole new category: [>> Click ME to Systematic Crypto](cry
     - [Tutorials](#tutorials)
     - [Courses](#courses)
   - [Relevant Projects](#relevant-projects)
-  - [Buy me a coffee?](#buy-me-a-coffee)
 
 ## Backtest + live trading
 
@@ -346,15 +345,4 @@ Note: the one marked as `Live Trading` has reasonable live trading support for a
 - [量化交易知识集 @ 泛程序员](https://github.com/wangzhe3224/systematic-trading-knowledge-collection) - Collect knowledge around systematic trading, including software design, trading strategies, statistical skill. 量化交易/系统化交易知识集
 - [Awesome Quant 中文](https://github.com/thuquant/awesome-quant) -  中国的Quant相关资源索引
 - [awesome-deep-trading](https://github.com/cbailes/awesome-deep-trading) - List of awesome resources for machine learning-based algorithmic trading
-- [Awesome Crypto Trading Bots](https://github.com/botcrypto-io/awesome-crypto-trading-bots)
-
-## Buy me a coffee?
-
-It takes time to produce videos, articles, and maintains the repositories.
-Feel free to support me :) thanks.
-
-- [Patreon](https://www.patreon.com/funcoder777)
-- BTC: bc1qrjrffv7aaf5f4f6dydkt4yaukt4297vedd6w6p
-- 支付宝
-
-<img src="https://github.com/wangzhe3224/awesome-systematic-trading/blob/master/assets/IMG_0825.jpg" width="200" height="200" />
+- [Awesome Crypto Trading Bots](https://github.com/botcrypto-io/awesome-crypto-trading-bots)