Add learn zig book by RiosAlex Rios

Author: DaviRain-Su

content/learn/index.smd

@@ -60,4 +60,5 @@
 - **[Awesome Zig](https://github.com/zigcc/awesome-zig):** A collection of some awesome public Zig programming language projects.
 - **[Zig Guide](https://zig.guide/):** 英文资料， [Sobeston](https://github.com/Sobeston) 编写
 - **[Zig in 30 minutes](https://gist.github.com/ityonemo/769532c2017ed9143f3571e5ac104e50):**
+- **[Learn zig](https://www.amazon.com/Learning-Zig-reimagined-introduction-programming/dp/1835085121):** 英文资料，[RiosAlex Rios](https://alexrios.me/)
 - Zig Hero: 涵盖了多个知名 Zig 开发者信息流列表，目前主要有两个平台：[Twitter](https://x.com/i/lists/1570249876155568129) 和 [Mastodon](https://mastodon.social/lists/65805)