添加后台连接用的后端

gm-server/README.md

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+# hackernews-async-ts
+
+[Hacker News](https://news.ycombinator.com/) showcase using typescript && egg
+
+## QuickStart
+
+### Development
+
+```bash
+$ npm i
+$ npm run dev
+$ open http://localhost:7001/
+```
+
+Don't tsc compile at development mode, if you had run `tsc` then you need to `npm run clean` before `npm run dev`.
+
+### Deploy
+
+```bash
+$ npm run tsc
+$ npm start
+```
+
+### Npm Scripts
+
+- Use `npm run lint` to check code style
+- Use `npm test` to run unit test
+- se `npm run clean` to clean compiled js at development mode once
+
+### Requirement
+
+- Node.js 8.x
+- Typescript 2.8+