Regenerate monorepo READMEs (#14006)

* Fix script to generate readmes

* Regenerate READMEs

packages/babel-compat-data/README.md

@@ -0,0 +1,19 @@
+# @babel/compat-data
+
+> 
+
+See our website [@babel/compat-data](https://babeljs.io/docs/en/babel-compat-data) for more information.
+
+## Install
+
+Using npm:
+
+```sh
+npm install --save @babel/compat-data
+```
+
+or using yarn:
+
+```sh
+yarn add @babel/compat-data
+```