feat: 代码块美化第一个版本

README.md

@@ -12,7 +12,7 @@ Imitate the Mac-style code block style, and specially adapt to popular themes su
 
   A1: This plugin has no operation buttons. After downloading and enabling the plug-in, open the document, and the code block will be automatically beautified into Mac style. Gone.
 
-  If you don't want to use this plugin, you can directly use [Zhihu Theme](https://github.com/terwer/siyuan-theme-zhihu) or dig out the [Code Block](https://github.com/terwer/ siyuan-theme-zhihu/tree/main/style/theme/code-block) related css.
+  If you don't want to use this plugin, you can directly use [Zhihu Theme](https://github.com/terwer/siyuan-theme-zhihu) or dig out the [Code Block](https://github.com/terwer/siyuan-theme-zhihu/tree/main/style/theme/code-block) related css.
 
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