init: 初始化 AssetX 项目仓库

包含 webapp（Next.js 用户端）、webapp-back（Go 后端）、
antdesign（管理后台）、landingpage（营销落地页）、
数据库 SQL 和配置文件。

webapp-back/doc.go

@@ -0,0 +1,8 @@
+/*
+Golang Gonic/Gin startup project fork form RealWorld https://realworld.io
+
+# You can find all the spec and front end demo in the Realworld project
+
+This project will include objects and relationships' CRUD, you will know how to write a golang/gin app though small perfectly formed.
+*/
+package main