From 4e7812ddd9e75ce5623bddb24fa04efcebe2e98f Mon Sep 17 00:00:00 2001
From: Discreater <941354277@qq.com>
Date: Fri, 26 Mar 2021 01:51:43 +0800
Subject: [PATCH] Add missing "?" notion

---
 src/items/type-aliases.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/items/type-aliases.md b/src/items/type-aliases.md
index c471f7a6a..3d555d563 100644
--- a/src/items/type-aliases.md
+++ b/src/items/type-aliases.md
@@ -3,7 +3,7 @@
 > **<sup>Syntax</sup>**\
 > _TypeAlias_ :\
 > &nbsp;&nbsp; `type` [IDENTIFIER]&nbsp;[_GenericParams_]<sup>?</sup>
->              [_WhereClause_]<sup>?</sup> ( `=` [_Type_] ) `;`
+>              [_WhereClause_]<sup>?</sup> ( `=` [_Type_] )<sup>?</sup> `;`
 
 A _type alias_ defines a new name for an existing [type]. Type aliases are
 declared with the keyword `type`. Every value has a single, specific type, but