Document the Dockerfile in the project template (#4853)
Document the Dockerfile in the project template (#4853)



zerolab/wagtail,mikedingjan/wagtail,nimasmi/wagtail,jnns/wagtail,FlipperPA/wagtail,rsalmaso/wagtail,torchbox/wagtail,nimasmi/wagtail,mixxorz/wagtail,nimasmi/wagtail,thenewguy/wagtail,nealtodd/wagtail,mikedingjan/wagtail,torchbox/wagtail,nimasmi/wagtail,kaedroho/wagtail,thenewguy/wagtail,rsalmaso/wagtail,gasman/wagtail,FlipperPA/wagtail,gasman/wagtail,jnns/wagtail,torchbox/wagtail,wagtail/wagtail,kaedroho/wagtail,wagtail/wagtail,timorieber/wagtail,rsalmaso/wagtail,nealtodd/wagtail,wagtail/wagtail,timorieber/wagtail,mixxorz/wagtail,takeflight/wagtail,zerolab/wagtail,zerolab/wagtail,takeflight/wagtail,nealtodd/wagtail,wagtail/wagtail,mikedingjan/wagtail,rsalmaso/wagtail,gasman/wagtail,torchbox/wagtail,mixxorz/wagtail,mixxorz/wagtail,jnns/wagtail,mixxorz/wagtail,FlipperPA/wagtail,kaedroho/wagtail,timorieber/wagtail,gasman/wagtail,takeflight/wagtail,mikedingjan/wagtail,jnns/wagtail,kaedroho/wagtail,gasman/wagtail,nealtodd/wagtail,rsalmaso/wagtail,kaedroho/wagtail,thenewguy/wagtail,timorieber/wagtail,takeflight/wagtail,thenewguy/wagtail,zerolab/wagtail,zerolab/wagtail,FlipperPA/wagtail,thenewguy/wagtail,wagtail/wagtail