glad you like it.
1. This is currently just an example how you could display news without any extension in typo3 but feel free to make an Feature request in the repository of the package. https://github.com/benjaminkott/bootstrap_package/issues?state=open
2. The default setting of the package is 5 so it will display the pagination when you have more than 5 pages to show you can adjust the settings in the template section of your root page -> template / constant editor / category -> bootstrap_package: Basic
3. the example is completly based on typoscript its an advanced example and is build ontop the normal text with image rendering - the setup for this you can find here https://github.com/benjaminkott/bootstrap_package/blob/master/Configuration/ContentElements/Base.ts from line 797 to 1062
to make a custom menu you need at first to register a custom type in your PageTS
TCEFORM.tt_content.menu_type.addItems.TYPENAME = My Custom Menu
after that you can create the typoscript setup for your menu rendering
tt_content.menu.20 {
TYPENAME < .default
}