fix(style): table class name in fixHugoOutput (#2897)

addClass must be called with class name only instead of '.table' as class name

modules/wowchemy/assets/js/wowchemy.js

@@ -83,7 +83,7 @@ function fixHugoOutput() {
   $("input[type='checkbox'][disabled]").parents('ul').addClass('task-list');
 
   // Bootstrap table style is opt-in and Goldmark doesn't add it.
-  $('table').addClass('.table');
+  $('table').addClass('table');
 }
 
 // Get an element's siblings.