Updated install docs
Updated install docs

referencing Debian and Ubuntu one-liners and removing Less / npm

jorge-marques/wagtail,thenewguy/wagtail,willcodefortea/wagtail,mjec/wagtail,iho/wagtail,darith27/wagtail,mixxorz/wagtail,helenwarren/pied-wagtail,inonit/wagtail,mixxorz/wagtail,mikedingjan/wagtail,inonit/wagtail,nealtodd/wagtail,100Shapes/wagtail,timorieber/wagtail,takeflight/wagtail,serzans/wagtail,iho/wagtail,JoshBarr/wagtail,quru/wagtail,hamsterbacke23/wagtail,gasman/wagtail,Klaudit/wagtail,dresiu/wagtail,chimeno/wagtail,wagtail/wagtail,rjsproxy/wagtail,kurtrwall/wagtail,janusnic/wagtail,jorge-marques/wagtail,chrxr/wagtail,jorge-marques/wagtail,darith27/wagtail,JoshBarr/wagtail,benemery/wagtail,Klaudit/wagtail,gogobook/wagtail,nilnvoid/wagtail,taedori81/wagtail,tangentlabs/wagtail,jnns/wagtail,stevenewey/wagtail,bjesus/wagtail,takeshineshiro/wagtail,nimasmi/wagtail,hamsterbacke23/wagtail,benemery/wagtail,kurtrwall/wagtail,iho/wagtail,lojack/wagtail,Tivix/wagtail,rsalmaso/wagtail,zerolab/wagtail,FlipperPA/wagtail,FlipperPA/wagtail,m-sanders/wagtail,mikedingjan/wagtail,Pennebaker/wagtail,jorge-marques/wagtail,mephizzle/wagtail,WQuanfeng/wagtail,thenewguy/wagtail,rsalmaso/wagtail,serzans/wagtail,wagtail/wagtail,inonit/wagtail,tangentlabs/wagtail,m-sanders/wagtail,nimasmi/wagtail,thenewguy/wagtail,chimeno/wagtail,nrsimha/wagtail,mikedingjan/wagtail,davecranwell/wagtail,mayapurmedia/wagtail,rsalmaso/wagtail,chrxr/wagtail,timorieber/wagtail,benemery/wagtail,torchbox/wagtail,gogobook/wagtail,rv816/wagtail,tangentlabs/wagtail,mephizzle/wagtail,chimeno/wagtail,kaedroho/wagtail,dresiu/wagtail,kurtw/wagtail,taedori81/wagtail,gogobook/wagtail,nutztherookie/wagtail,takeflight/wagtail,inonit/wagtail,iansprice/wagtail,benemery/wagtail,jnns/wagtail,lojack/wagtail,Klaudit/wagtail,mikedingjan/wagtail,WQuanfeng/wagtail,gasman/wagtail,Tivix/wagtail,100Shapes/wagtail,rjsproxy/wagtail,hanpama/wagtail,jnns/wagtail,bjesus/wagtail,dresiu/wagtail,jordij/wagtail,iansprice/wagtail,nutztherookie/wagtail,quru/wagtail,nilnvoid/wagtail,janusnic/wagtail,dresiu/wagtail,stevenewey/wagtail,mjec/wagtail,wagtail/wagtail,mjec/wagtail,mixxorz/wagtail,tangentlabs/wagtail,gasman/wagtail,takeshineshiro/wagtail,zerolab/wagtail,timorieber/wagtail,serzans/wagtail,benjaoming/wagtail,janusnic/wagtail,kurtw/wagtail,100Shapes/wagtail,KimGlazebrook/wagtail-experiment,jordij/wagtail,nilnvoid/wagtail,nimasmi/wagtail,torchbox/wagtail,hanpama/wagtail,torchbox/wagtail,nealtodd/wagtail,iansprice/wagtail,JoshBarr/wagtail,marctc/wagtail,kaedroho/wagtail,nrsimha/wagtail,davecranwell/wagtail,bjesus/wagtail,mixxorz/wagtail,jnns/wagtail,mayapurmedia/wagtail,lojack/wagtail,rsalmaso/wagtail,stevenewey/wagtail,takeshineshiro/wagtail,mephizzle/wagtail,janusnic/wagtail,torchbox/wagtail,hamsterbacke23/wagtail,willcodefortea/wagtail,benjaoming/wagtail,helenwarren/pied-wagtail,zerolab/wagtail,mjec/wagtail,rv816/wagtail,mayapurmedia/wagtail,KimGlazebrook/wagtail-experiment,jordij/wagtail,WQuanfeng/wagtail,takeflight/wagtail,thenewguy/wagtail,taedori81/wagtail,gasman/wagtail,taedori81/wagtail,KimGlazebrook/wagtail-experiment,kaedroho/wagtail,zerolab/wagtail,Pennebaker/wagtail,JoshBarr/wagtail,timorieber/wagtail,gogobook/wagtail,willcodefortea/wagtail,chrxr/wagtail,kaedroho/wagtail,nutztherookie/wagtail,serzans/wagtail,FlipperPA/wagtail,kurtrwall/wagtail,kaedroho/wagtail,rv816/wagtail,nealtodd/wagtail,thenewguy/wagtail,darith27/wagtail,benjaoming/wagtail,m-sanders/wagtail,Toshakins/wagtail,quru/wagtail,jordij/wagtail,nimasmi/wagtail,quru/wagtail,KimGlazebrook/wagtail-experiment,mayapurmedia/wagtail,nutztherookie/wagtail,gasman/wagtail,takeshineshiro/wagtail,davecranwell/wagtail,davecranwell/wagtail,nealtodd/wagtail,bjesus/wagtail,Pennebaker/wagtail,wagtail/wagtail,Toshakins/wagtail,taedori81/wagtail,Klaudit/wagtail,wagtail/wagtail,willcodefortea/wagtail,rv816/wagtail,darith27/wagtail,nrsimha/wagtail,Toshakins/wagtail,nrsimha/wagtail,chimeno/wagtail,rjsproxy/wagtail,kurtrwall/wagtail,stevenewey/wagtail,hanpama/wagtail,kurtw/wagtail,Toshakins/wagtail,takeflight/wagtail,rjsproxy/wagtail,Pennebaker/wagtail,rsalmaso/wagtail,mephizzle/wagtail,jorge-marques/wagtail,mixxorz/wagtail,iho/wagtail,zerolab/wagtail,dresiu/wagtail,FlipperPA/wagtail,iansprice/wagtail,hanpama/wagtail,chimeno/wagtail,WQuanfeng/wagtail,marctc/wagtail,Tivix/wagtail,kurtw/wagtail,nilnvoid/wagtail,benjaoming/wagtail,marctc/wagtail,helenwarren/pied-wagtail,marctc/wagtail,chrxr/wagtail,hamsterbacke23/wagtail,Tivix/wagtail,m-sanders/wagtail