From 1cc5739b1d4491bc59881461f7b9e96b6cc5935e Mon Sep 17 00:00:00 2001
From: Ben Johnson <benbjohnson@yahoo.com>
Date: Tue, 1 Jun 2021 08:13:01 -0600
Subject: Fix MapBuilder docs

---
 README.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/README.md b/README.md
index 5292549..7553f76 100644
--- a/README.md
+++ b/README.md
@@ -219,7 +219,7 @@ to use the `MapBuilder`. It uses nearly the same API as `Map` except that it
 updates a map in-place until you are ready to use it. 
 
 ```go
-b := immutable.NewMapBuilder(immutable.NewMap(nil))
+b := immutable.NewMapBuilder(nil)
 b.Set("foo", 100)
 b.Set("bar", 200)
 b.Set("foo", 300)
-- 
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