Update readme, add verticalAlign option

Author: drehimself

README.md

@@ -122,6 +122,7 @@ plugins: [
     tableStripedBackgroundColor: 'rgba(0,0,0,.05)',  // default: rgba(0,0,0,.05)
     tableHoverBackgroundColor: 'rgba(0,0,0,.075)',  // default: rgba(0,0,0,.075)
     tableBodyBorder: true, // default: true. If set to false, borders for the table body will be removed. Only works for normal tables (i.e. does not apply to .table-bordered)
+    verticalAlign: 'top', // default: 'top'
   }),
 ],
 ```