From b3128f0b6dd419accb62da3b4f8efab99e5f120d Mon Sep 17 00:00:00 2001
From: Dan Wolff <dan.d.wolff@gmail.com>
Date: Mon, 5 Feb 2018 21:24:20 +0100
Subject: [PATCH] add not one `Object.seal()`

---
 README.md | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/README.md b/README.md
index 3ecd4190..51ab74e4 100644
--- a/README.md
+++ b/README.md
@@ -1115,5 +1115,5 @@ To allow for better optimizations, the compiler makes various assumptions.
 - Getting and setting properties on a plain object does not cause other side effects
   (using `.watch()` or `Proxy`).
 - Object properties are able to be added (not prevented with
-  `Object.defineProperty()`, `Object.defineProperties()`, `Object.freeze()` or
-  `Object.preventExtensions()`).
+  `Object.defineProperty()`, `Object.defineProperties()`, `Object.freeze()`,
+  `Object.preventExtensions()` or `Object.seal()`).