I thought linking to the source rather than to just the pdf would be more useful for you, as a) some might like to actually contribute and b) many would like to

I thought linking to the source rather than to just the pdf would be more useful for you, as a) some might like to actually contribute and b) many would like to know what else the author made and lastly c) a minority of people isn't allowed to open pdf's from the internet, so they could build it locally (or just starr on github).