Regenerate monorepo READMEs (#14006)

* Fix script to generate readmes

* Regenerate READMEs

packages/babel-plugin-transform-react-jsx-development/README.md

@@ -0,0 +1,19 @@
+# @babel/plugin-transform-react-jsx-development
+
+> Turn JSX into React function calls in development
+
+See our website [@babel/plugin-transform-react-jsx-development](https://babeljs.io/docs/en/babel-plugin-transform-react-jsx-development) for more information.
+
+## Install
+
+Using npm:
+
+```sh
+npm install --save-dev @babel/plugin-transform-react-jsx-development
+```
+
+or using yarn:
+
+```sh
+yarn add @babel/plugin-transform-react-jsx-development --dev
+```