[chapter01][translated] update the date of translated.

Author: Liam0205

chapter01.tex

@@ -3,7 +3,8 @@
 % Copyright 2007-2014 Victor Eijkhout
 % Translated by LiYanrui@bbs.ctex.org
 % Translated by zoho@bbs.ctex.org
-% Translated by Liam0205@bbs.ctex.org
+% Translated by Liam0205@bbs.ctex.org+
+% Date of translated: 2018-1-31
 \documentclass{book}
 
 \input{preamble}