Installing new module I have downloaded and installed Drupal 8. The first thing I need to ensure when I create articles URL is automatically generated. In Wordpress this comes by default. But it appears not the case for Drupal.

I searched and found Pathauto (https://www.drupal.org/project/pathauto) will do what I want but facing difficult installing it. The page https://www.fastcomet.com/tutorials/drupal8/module-installation shows a tab List with button +Install New Module but on my system when I visit http://localhost/admin/modules I don't see the tab List or +Install New Module.

What could I be missing?
If you don't have this button, try to enable the module Update manager.
Maybe this makes the button show .. What backend theme are you using ?

Here's the path to the module installation page: http://localhost/admin/modules/install