update readme

packages/connect-miniprogram/README.md

@@ -1,8 +1,8 @@
 # connect-miniprogram
 
-A [Connect](https://connectrpc.com) and gRPC client for Weixin Miniprogram
+A [Connect](https://github.com/connectrpc/connect-es/tree/main/packages/connect-web) client library Weixin Miniprogram. Both [Connect RPC](https://connectrpc.com/docs/protocol) and [gRPC-web](https://github.com/grpc/grpc/blob/master/doc/PROTOCOL-WEB.md) protocols are supported.
 
-适配小程序的 [Connect](https://connectrpc.com) 客户端。可以在小程序中使用 Connect 协议和 gRPC 协议的 API。
+适配小程序的 [Connect](https://connectrpc.com) 客户端。可以在小程序中使用 [Connect RPC 协议](https://connectrpc.com/docs/protocol) 和 [gRPC-web 协议](https://github.com/grpc/grpc/blob/master/doc/PROTOCOL-WEB.md) 的 API。
 
 > Connect is a family of libraries for building browser and gRPC-compatible HTTP APIs: you write a short [Protocol Buffer](https://developers.google.com/protocol-buffers) schema and implement your application logic, and Connect generates code to handle marshaling, routing, compression, and content type negotiation. It also generates an idiomatic, type-safe client in any supported language.
 
@@ -18,44 +18,6 @@ Connect 依赖了一些微信小程序不支持的 API。所以需要引入 Poly
 | [TextEncoder](https://developer.mozilla.org/en-US/docs/Web/API/TextEncoder) | [samthor/fast-text-encoding](https://github.com/samthor/fast-text-encoding) |
 | [TextDecoder](https://developer.mozilla.org/en-US/docs/Web/API/TextDecoder) | [samthor/fast-text-encoding](https://github.com/samthor/fast-text-encoding) |
 
-### Method 1 Use "shimming" (recommended)
-
-Use the bundlers "shimming" feature to replace all usage of `Headers` `TextEncoder` `TextDecoder` with the polyfill version. This is the recommended method because it doesn't pollute the global scope.
-
-使用打包工具的 “Shimming” 功能替换代码中所有的 `Headers` `TextEncoder` `TextDecoder`。比较推荐这种方法，因为这样不会污染 global 对象。
-
-[Webpack](https://webpack.js.org/guides/shimming/#shimming-globals):
-
-```js
-module.exports = {
-  plugins: [
-    new webpack.ProvidePlugin({
-      Headers: ['connect-miniprogram/shims.js', 'HeadersPolyfill'],
-      TextDecoder: ['connect-miniprogram/shims.js', 'FastTextDecoder'],
-      TextEncoder: ['connect-miniprogram/shims.js', 'FastTextEncoder'],
-    }),
-  ],
-};
-```
-
-[Taro](https://docs.taro.zone/docs/config-detail/#miniwebpackchain):
-
-```js
-{
-  webpackChain: (chain, webpack) => {
-    chain.plugin('shimming').use(webpack.ProvidePlugin, [
-      {
-        Headers: ['connect-miniprogram/shims.js', 'HeadersPolyfill'],
-        TextDecoder: ['connect-miniprogram/shims.js', 'FastTextDecoder'],
-        TextEncoder: ['connect-miniprogram/shims.js', 'FastTextEncoder'],
-      },
-    ]);
-  };
-}
-```
-
-### Method 1 Use "polyfill"
-
 Import the polyfill at the start of your code:
 
 在小程序代码最开头插入以下内容：
@@ -66,10 +28,14 @@ import 'connect-miniprogram/polyfill';
 
 ## How to use 使用方法
 
-The usage of this library is basically the same with [@connectrpc/connect-web](https://connectrpc.com/docs/web/getting-started/). You can click the link to read its doc. You can also clone the repo and try out the `example-taro` project.
+This library is a port of the official [@connectrpc/connect-web](https://github.com/connectrpc/connect-es/tree/main/packages/connect-web) library. The usage is very similar to it. You can click [this link](https://connectrpc.com/docs/web/getting-started/) to read its doc. You can also clone the repo and try out the `example-taro` project.
 
 使用方法跟 [@connectrpc/connect-web](https://connectrpc.com/docs/web/getting-started/) 基本相同，你可以点击链接查看文档。你也可以克隆代码，用 `example-taro` 尝试。
 
+What this library do it we port `createConnectTransport` and `createGrpcWebTransport` to work in Miniprograms. You only need to import one of These 2 functions to create a `transport` object, then use the offical package `@connectrpc/connect` to create the client.
+
+本库做的事情只是移植了 `createConnectTransport` 和 `createGrpcWebTransport` 两个函数，使他们能在微信小程序中工作。你需要引入他们来创建一个 `transport` 对象，然后用官方包 `@connectrpc/connect` 来创建 `client` 对象
+
 ```js
 import { createPromiseClient } from '@connectrpc/connect';
 import {
@@ -106,8 +72,12 @@ async function serverStream() {
 }
 ```
 
-## Limitations
+## Limitations 局限性
 
-- Doesn't support interceptor and `contextValues` option.
 - Doesn't support `signal` option because Weixin doesn't have `AbortSignal` API.
+- Doesn't support `interceptor` and `contextValues` option. I don't have a plan to implement them because they heavily depend on `AbortSignal` API
 - Doesn't support stream request body because either `fetch` or Weixin dosen't support sending stream request.
+
+- 不支持 `signal` 选项，因为微信不支持 `AbortSignal` API。
+- 不支持 `interceptor` 和 `contextValues` 选项。我也不打算实现，因为它们依赖 `AbortSignal` API。
+- 不支持客户端流式请求。因为微信和浏览器都不支持发送流失请求。