180415 Jupyter中并排插入两张图片

<table>
<td> 
<img src="images/attn_model.png" style="width:500;height:500px;"> <br>
</td> 
<td> 
<img src="images/attn_mechanism.png" style="width:500;height:500px;"> <br>
</td> 
</table>
<caption><center> **Figure 1**: Neural machine translation with attention</center></caption>