v3.1.1改变类型声明文件路径

before:
import { TreeNodeOptions } from "vue-virtual-tree/typings/VirtualTree/types";

now:
import { TreeNodeOptions } from "vue-virtual-tree/lib/typings/VirtualTree/types";

fix indent

Fix last level indentation

更新文档v3.0.8

更新文档

package.json

修改package.json

V3.0.0

正式版