Refactor move docs (#8108)

* feat: [skip] generate readme script

* docs: [skip ci] update READMEs

* docs: [skip ci] fix code block type

* chore: [skip ci] move generator script

packages/babel-plugin-transform-object-assign/README.md

@@ -1,60 +1,19 @@
 # @babel/plugin-transform-object-assign
 
-> Replace `Object.assign` with an inline helper. If you are authoring an application, rather than a library, it is recommended that you use the `Object.assign` polyfill instead.
+> Replace Object.assign with an inline helper
 
-## Example
+See our website [@babel/plugin-transform-object-assign](https://new.babeljs.io/docs/en/next/babel-plugin-transform-object-assign.html) for more information.
 
-**In**
+## Install
 
-```javascript
-Object.assign(a, b);
-```
-
-**Out**
-
-```javascript
-var _extends = ...;
-
-_extends(a, b);
-```
-
-## Caveats
-
-- Will only work with code of the form `Object.assign` or `Object['assign']`. The following patterns are not supported:
-
-  ```javascript
-  var { assign } = Object;
-  var assign = Object.assign;
-  ```
-
-## Installation
+Using npm:
 
 ```sh
-npm install --save-dev @babel/plugin-transform-object-assign
+npm install --save @babel/plugin-transform-object-assign
 ```
 
-## Usage
-
-### Via `.babelrc` (Recommended)
-
-**.babelrc**
-
-```json
-{
-  "plugins": ["@babel/plugin-transform-object-assign"]
-}
-```
-
-### Via CLI
+or using yarn:
 
 ```sh
-babel --plugins @babel/plugin-transform-object-assign script.js
-```
-
-### Via Node API
-
-```javascript
-require("@babel/core").transform("code", {
-  plugins: ["@babel/plugin-transform-object-assign"]
-});
+yarn add --save @babel/plugin-transform-object-assign
 ```