added documentation for page listing buttons
added documentation for page listing buttons

zerolab/wagtail,FlipperPA/wagtail,zerolab/wagtail,nealtodd/wagtail,thenewguy/wagtail,timorieber/wagtail,quru/wagtail,zerolab/wagtail,takeflight/wagtail,kurtrwall/wagtail,quru/wagtail,mikedingjan/wagtail,iansprice/wagtail,gasman/wagtail,jnns/wagtail,Toshakins/wagtail,torchbox/wagtail,mikedingjan/wagtail,gasman/wagtail,nealtodd/wagtail,hamsterbacke23/wagtail,torchbox/wagtail,FlipperPA/wagtail,wagtail/wagtail,mixxorz/wagtail,kurtrwall/wagtail,takeflight/wagtail,timorieber/wagtail,rsalmaso/wagtail,gasman/wagtail,thenewguy/wagtail,Toshakins/wagtail,nilnvoid/wagtail,nimasmi/wagtail,kaedroho/wagtail,mixxorz/wagtail,nilnvoid/wagtail,chrxr/wagtail,kurtw/wagtail,nimasmi/wagtail,jnns/wagtail,Toshakins/wagtail,gasman/wagtail,chrxr/wagtail,nutztherookie/wagtail,thenewguy/wagtail,rsalmaso/wagtail,rsalmaso/wagtail,iansprice/wagtail,wagtail/wagtail,Toshakins/wagtail,nimasmi/wagtail,wagtail/wagtail,nutztherookie/wagtail,jnns/wagtail,kaedroho/wagtail,nealtodd/wagtail,mixxorz/wagtail,takeflight/wagtail,wagtail/wagtail,kaedroho/wagtail,nutztherookie/wagtail,mixxorz/wagtail,quru/wagtail,kurtrwall/wagtail,iansprice/wagtail,FlipperPA/wagtail,quru/wagtail,timorieber/wagtail,mikedingjan/wagtail,nimasmi/wagtail,FlipperPA/wagtail,hamsterbacke23/wagtail,chrxr/wagtail,takeflight/wagtail,rsalmaso/wagtail,kurtw/wagtail,thenewguy/wagtail,kaedroho/wagtail,nilnvoid/wagtail,mixxorz/wagtail,torchbox/wagtail,kaedroho/wagtail,zerolab/wagtail,thenewguy/wagtail,nutztherookie/wagtail,zerolab/wagtail,jnns/wagtail,nilnvoid/wagtail,chrxr/wagtail,gasman/wagtail,hamsterbacke23/wagtail,nealtodd/wagtail,hamsterbacke23/wagtail,torchbox/wagtail,wagtail/wagtail,mikedingjan/wagtail,kurtrwall/wagtail,kurtw/wagtail,kurtw/wagtail,iansprice/wagtail,timorieber/wagtail,rsalmaso/wagtail