chore(release): 1.20.0 [skip ci]

# [1.20.0](https://github.com/d2-projects/d2-admin/compare/v1.19.0...v1.20.0) (2020-09-01)

### Bug Fixes

* 修复请求缺少/api不走fake的问题 ([02d6db3](02d6db3beb))

### Features

* ✨ api 配置文件新增 .api.js 命名规则 ([cb98286](cb9828605f))
* ✨ 移除了 d2-container 组件上的 betterScrollOptions 不必要声明 ([0accc40](0accc401e7))

package.json

@@ -1,6 +1,6 @@
 {
   "name": "d2-admin",
-  "version": "1.19.0",
+  "version": "1.20.0",
   "scripts": {
     "serve": "vue-cli-service serve --open",
     "start": "npm run serve",