Hi Renato!
I had the same feeling. For suggestions or bugs I suppose a mail
to this list with a copy to numbchild@gmail.com
would do it.
All in all:
The documentation starts by org-capture, but forget about
it:
The basic function that org-contracts does, is searching and show
you the results.
Where does it search?
It searches in any headline that has a specific Property like: email or address or... You can customize these properties that define what headline is a contact (customize-group org-contacts).
And that's it!
Now, you can generate contacts by hand, or faster using org-capture, as documentation says.
Here it's org-contacts better explained by Ihor:
https://lists.gnu.org/archive/html/emacs-orgmode/2022-09/msg00162.html
Best regards