add version

Author: Mikachu2333

doc_related/preface.tex

@@ -9,7 +9,7 @@
 \vspace{100pt}
 {\Huge\textbf{山东第二医科大学指南}}\\[10pt]
 （简称：\colored{61}{27}{12}{321指南}）\\[20pt]
-%{\large\textbf{\colored{59}{100}{220}{4.5.2}}}\vspace*{-25pt}}
+%{\large\textbf{\colored{59}{100}{220}{4.5.3}}}\vspace*{-25pt}}
 {\large\colored{255}{0}{0}{455-Preview}}\vspace*{-25pt}}
 \author{%
     LinkChou%