更新 figure-target-side-multi-task-learning.tex，修改softmax拼写错误

Book/Chapter7/Figures/figure-target-side-multi-task-learning.tex

@@ -5,8 +5,8 @@
 \node [anchor=center] (node2) at (-2.1,-0.5) {\small{$z$}：单语数据};
 \node [anchor=center] (node1-1) at (0,0) {\small{$y'$}};
 \node [anchor=center] (node3-1) at ([xshift=5.5em,yshift=-0.1em]node1-1.east) {\small{$z'$}};
-\node[anchor=south,line width=0.6pt,draw,rounded corners,minimum height=1.5em,minimum width=4em,fill=blue!20](node1-2) at ([yshift=-3em]node1-1.south) {\small{softamx}};
-\node[anchor=south,line width=0.6pt,draw,rounded corners,minimum height=1.5em,minimum width=4em,fill=blue!20](node3-2) at ([yshift=-3em]node3-1.south) {\small{softamx}};
+\node[anchor=south,line width=0.6pt,draw,rounded corners,minimum height=1.5em,minimum width=4em,fill=blue!20](node1-2) at ([yshift=-3em]node1-1.south) {\small{softmax}};
+\node[anchor=south,line width=0.6pt,draw,rounded corners,minimum height=1.5em,minimum width=4em,fill=blue!20](node3-2) at ([yshift=-3em]node3-1.south) {\small{softmax}};
 \node[anchor=south,line width=0.6pt,draw,rounded corners,minimum height=2.2em,minimum width=4em,fill=red!20](node1-3) at ([yshift=-4.0em]node1-2.south) {\small{Decoder}};
 \node[anchor=south,line width=0.6pt,draw,rounded corners,minimum height=2.2em,minimum width=4em,fill=yellow!20](node3-3) at ([yshift=-4.0em]node3-2.south) {\small{LM}};
 \node[anchor=south](node1-4) at ([xshift=-0.6em,yshift=-3em]node1-3.south) {\gray{\small{$y$}}};