I have installed projectdoc on my Confluence server. What am I supposed to to do to get started?

I have created a space, but I am unsure of what I am supposed to do next!

I have installed projectdoc, but I am unsure about how my existing wiki spaces can be improved with projectdoc. What should I do next?

I have installed projectdoc, but my existing documentation did not get any better! How long do I have to wait? Do I really have to use projectdoc templates and projectdoc macros by myself?

I'm overwhelmed by the number of macros provided by projectdoc! Which of the macros are most useful to me?

I'm overwhelmed by the number of templates provided by the free add-ons! Which of the templates are most useful to me?

There should be more than 20 page blueprints in the core add-on, but I find actually none.