fix: fix typo.

Author: fky2015

Diff for: bithesis.dtx

@@ -952,15 +952,15 @@
 %   \begin{bitsyntax}[emph={[1]mathFont}]
 %     mathFont = (*(cm)|asana|fira|...|xits|none*)
 %   \end{bitsyntax}
-% 设置数学字体，具体配置见表~\ref{tab:math-font}。除 |Computer Mordern| （默认）字体以外，均使用 \pkg{unicode-math} 宏包调用字体。 
+% 设置数学字体，具体配置见表~\ref{tab:math-font}。除 |Computer Modern| （默认）字体以外，均使用 \pkg{unicode-math} 宏包调用字体。 
 % 
 % \end{function}
 %
 % \begin{table}[]
 % \begin{tabular}{cc|cc}
 % \toprule
 % \textbf{选项名称}                          & \textbf{字体名称}                                & \textbf{选项名称}                  & \textbf{字体名称}                                    \\ \midrule
-% cm                                     & Computer Mordern                             & \cellcolor[HTML]{EFEFEF}newcm  & \cellcolor[HTML]{EFEFEF}New Computer Modern Math \\
+% cm                                     & Computer Modern                             & \cellcolor[HTML]{EFEFEF}newcm  & \cellcolor[HTML]{EFEFEF}New Computer Modern Math \\
 % \cellcolor[HTML]{EFEFEF}asana          & \cellcolor[HTML]{EFEFEF}Asana Math           & stix                           & STIX Math                                        \\
 % concrete                               & Concrete Math                                & \cellcolor[HTML]{EFEFEF}stix2  & \cellcolor[HTML]{EFEFEF}STIX Two Math            \\
 % \cellcolor[HTML]{EFEFEF}erewhon        & \cellcolor[HTML]{EFEFEF}Erewhon Math         & xcharter                       & XCharter Math                                    \\