add note about django-treebeard api
add note about django-treebeard api

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