fix error

Author: MANDEep22332

lib/node_modules/@stdlib/_tools/static-analysis/js/summarize-file-list/README.md

@@ -67,6 +67,7 @@ By default, the function performs a cumulative static [summary analysis][@stdlib
 
 ```javascript
 var files = [ './beep.js', './boop.js' ];
+
 var opts = {
     'cumulative': false
 };