From f4f37a244aade77574a2d67f9e0495d5997dec86 Mon Sep 17 00:00:00 2001
From: Justin Lin <caterpillar@openhome.cc>
Date: Fri, 9 Jun 2017 10:17:37 +0800
Subject: [PATCH] updated doc

---
 docs/lib-polysections.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/docs/lib-polysections.md b/docs/lib-polysections.md
index 7257e840..d9915bd2 100644
--- a/docs/lib-polysections.md
+++ b/docs/lib-polysections.md
@@ -35,7 +35,7 @@ The indexes of the above triangles is:
 		[0, 5, 3]
 	]
 
-When defining triangles, clockwise indexes are prefered. 
+When defining triangles, clockwise indexes are preferred. 
 
 ## Parameters