增加书的说明

Author: yangzhongke

README.md

@@ -1 +1,20 @@
-# NETBookMaterials
+# NETBookMaterials
+
+![《ASP.NET Core技术内幕与项目实战》的封面](https://raw.githubusercontent.com/yangzhongke/NETBookMaterials/main/Resources/cover.jpg)
+
+本源代码对应的图书《ASP.NET Core技术内幕与项目实战》已经出版，请在京东、淘宝等购物平台搜索《ASP.NET Core技术内幕与项目实战》。
+
+1. 京东推荐购买链接：[https://item.jd.com/10054940333301.html](https://item.jd.com/10054940333301.html)
+2. 淘宝推荐购买链接：[https://detail.tmall.com/item.htm?id=677117689039](https://detail.tmall.com/item.htm?id=677117689039)
+
+配套视频教程：
+
+1. [在哔哩哔哩观看](https://www.bilibili.com/video/BV1pK41137He)
+
+2. [在西瓜视频观看](https://www.ixigua.com/7064021159750140420)
+
+3. [在今日头条观看](https://www.toutiao.com/video/7062531918184579616)
+
+4. [Y在outube观看](https://www.youtube.com/watch?v=0HcIQOaqBwE&list=PL9sJKk6XPMxehYCui7OysUV6trlBbJ4T_)
+
+学习过程中有任何问题，请给我发邮件 [email protected]