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-instanceof/README.md

@@ -1,62 +1,19 @@
 # @babel/plugin-transform-instanceof
 
-> Wraps `instanceof` expressions to allow constructors to customize the logic with a `Symbol.hasInstance` method
+> This plugin transforms all the ES2015 'instanceof' methods
 
-## Example
+See our website [@babel/plugin-transform-instanceof](https://new.babeljs.io/docs/en/next/babel-plugin-transform-instanceof.html) for more information.
 
-**In**
+## Install
 
-```javascript
-foo instanceof Bar;
-```
-
-**Out**
-
-```javascript
-function _instanceof(left, right) {
-  if (right != null && typeof Symbol !== "undefined" && right[Symbol.hasInstance]) {
-    return right[Symbol.hasInstance](left);
-  } else {
-    return left instanceof right;
-  }
-}
-
-_instanceof(foo, Bar);
-```
-
-## Installation
+Using npm:
 
 ```sh
-npm install --save-dev @babel/plugin-transform-instanceof
+npm install --save @babel/plugin-transform-instanceof
 ```
 
-## Usage
-
-### Via `.babelrc` (Recommended)
-
-**.babelrc**
-
-```json
-{
-  "plugins": ["@babel/plugin-transform-instanceof"]
-}
-```
-
-### Via CLI
+or using yarn:
 
 ```sh
-babel --plugins @babel/plugin-transform-instanceof script.js
+yarn add --save @babel/plugin-transform-instanceof
 ```
-
-### Via Node API
-
-```javascript
-require("@babel/core").transform("code", {
-  plugins: ["@babel/plugin-transform-instanceof"]
-});
-```
-
-## References
-
-* [ES6 Spec: InstanceOf Operator Semantics](https://www.ecma-international.org/ecma-262/6.0/#sec-instanceofoperator)
-* [MDN: Symbol.hasInstance](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Symbol/hasInstance)