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After installing a new bundle, what's the best way (besides reading the docs!) to figure out what that bundle just gave you?
Run php bin/console debug:config NameOfBundle to see what new config options you have.
php bin/console debug:config NameOfBundle
Check out the source code inside the vendor/ directory, paying special attention to the PHP classes.
vendor/
Run php bin/console debug:autowiring and see what new, related services show up.
php bin/console debug:autowiring
Run php bin/console debug:container and see what new, related services show up.
php bin/console debug:container