From 52bde3038445cf78468bb95220942b9b87b982ab Mon Sep 17 00:00:00 2001
From: Little-Flower-171 <36354459+Little-Flower-171@users.noreply.github.com>
Date: Thu, 7 Feb 2019 19:29:39 +0800
Subject: [PATCH] Replace std::is_void by std::decay

Currently `std::is_void` is used as an example of type trait.
But `std::is_void` contains `::value` instead of `::type`,
thus not fitting with the definition of "trait."
---
 doc/index.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/doc/index.md b/doc/index.md
index fd823d1..dec6972 100644
--- a/doc/index.md
+++ b/doc/index.md
@@ -49,7 +49,7 @@ For example,
 
 is a trait taking an arbitrary number of types that always "returns" `void`. There are
 many familiar examples of traits in the Standard Library; `std::remove_reference` and
-`std::is_void` to name two.
+`std::decay` to name two.
 
 ## Aliases