fix readme

Author: kaiwu

README.md

@@ -3,16 +3,12 @@
 Develop wechat miniprograms in [gleam](https://gleam.run).
 It uses [esbuild]() and [esbuild-plugin-less]() to build `*.json`, `*.wxml` and `.wxss` files
 
-[![Package Version](https://img.shields.io/hexpm/v/wechat_dev_tools)](https://hex.pm/packages/wechat_dev_tools)
-[![Hex Docs](https://img.shields.io/badge/hex-docs-ffaff3)](https://hexdocs.pm/wechat_dev_tools/)
-
 ```sh
 $ git clone https://github.com/kaiwu/wechat_dev_tools.git your-project
 $ cd your-project
 $ npm install
 $ gleam build
 ```
-Further documentation can be found at <https://hexdocs.pm/wechat_dev_tools>.
 
 ## Development