Umar @ WP Page Numbers


I could not understand the wordings of these below. Please help me to display page number in good looking css format.
I have activated the plugin and copy pasted the code in index.php of theme.

Please tell me that what should i do next.

I can not understand below tenses. Please help me

Theme folder name
Copy one of the theme folders
Edit the ‘wp-page-numbers.css’ to make your changes
Rename your folder copy to a theme name
Upload your folder into ‘wp-content/plugins/wp-page-numbers/’
Set your ‘Theme folder name’ in admin ‘Settings / WP Page Numbers’
‘Update settings’. Done!