Docs: mention paket.local works just for old project types - fixes #3443
Docs: mention paket.local works just for old project types - fixes #3443

thinkbeforecoding/Paket,sergey-tihon/Paket,thinkbeforecoding/Paket,sergey-tihon/Paket,fsprojects/Paket,thinkbeforecoding/Paket,baronfel/Paket,baronfel/Paket,inosik/Paket,thinkbeforecoding/Paket,fsprojects/Paket,inosik/Paket