Aizat

Hi bryan,
Welcome to Affinity Forums :)
Go to the the green page at the beginning of each chapter and you should find a url like affin.co/xyz..
On the projects section the link is on the first page after the separator pages (in green too).
Type it on your browser to download the zipped resources files.
 
Basically you have to add the project name after the affin.co/ to download the resources for that project.