Issue #2662646 by chera.jaswinder, philnguyen, Munavijayalakshmi, daften,...

Issue #2662646 by chera.jaswinder, philnguyen, Munavijayalakshmi, daften, fago, memtkmcc, colan, benjifisher, cilefen, britter, dagmar, tomogden, catch, robertloo, xjm, osopolar, wesleydv, YesCT, jhodgdon, xlin, dhopki12: Add the temporary files directory config to the example config overrides in default.settings.php

sites/default/default.settings.php

@@ -643,6 +643,7 @@
  * configuration values in settings.php will not fire any of the configuration
  * change events.
  */
+# $config['system.file']['path']['temporary'] = '/tmp';
 # $config['system.site']['name'] = 'My Drupal site';
 # $config['system.theme']['default'] = 'stark';
 # $config['user.settings']['anonymous'] = 'Visitor';