style: add empty line

Signed-off-by: Athan <kgryte@gmail.com>

Author: kgryte

lib/node_modules/@stdlib/stats/max-by/README.md

@@ -141,6 +141,7 @@ var x = array( [ -1.0, 2.0, -3.0, 4.0 ], {
     'order': 'row-major'
 });
 // returns <ndarray>[ [ -1.0, 2.0 ], [ -3.0, 4.0 ] ]
+
 var opts = {
     'dims': [ 0 ],
     'keepdims': true