From 567d25cfa5d9c4662cdb5897b2fb12304452b849 Mon Sep 17 00:00:00 2001
From: Jan Potoms <potoms.jan@gmail.com>
Date: Fri, 26 Jan 2018 08:38:16 +0100
Subject: [PATCH] Document the feature

---
 packages/babel-register/README.md | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/packages/babel-register/README.md b/packages/babel-register/README.md
index a72e2fb003..e54797d852 100644
--- a/packages/babel-register/README.md
+++ b/packages/babel-register/README.md
@@ -68,7 +68,10 @@ require("@babel/register")({
   extensions: [".es6", ".es", ".jsx", ".js", ".mjs"],
 
   // Setting this to false will disable the cache.
-  cache: true
+  cache: true,
+
+  // Specify the version of babel-core used for transformation. (Optional)
+  babel: require('babel-core')
 });
 ```