Add some overview docs to compositing::constellation
Add some overview docs to compositing::constellation

akosel/servo,meh/servo,meh/servo,aweinstock314/servo,nrc/servo,tempbottle/servo,runarberg/servo,szeged/servo,saneyuki/servo,peterjoel/servo,CJ8664/servo,kindersung/servo,szeged/servo,akosel/servo,saratang/servo,brendandahl/servo,dati91/servo,ryancanhelpyou/servo,splav/servo,eddyb/servo,mbrubeck/servo,brendandahl/servo,emilio/servo,ConnorGBrewster/servo,tempbottle/servo,AnthonyBroadCrawford/servo,emilio/servo,mbrubeck/servo,fiji-flo/servo,splav/servo,akosel/servo,rentongzhang/servo,WriterOfAlicrow/servo,GyrosOfWar/servo,tafia/servo,nrc/servo,mattnenterprise/servo,avadacatavra/servo,tafia/servo,mdibaiee/servo,notriddle/servo,dagnir/servo,caldwell/servo,rixrix/servo,kindersung/servo,KiChjang/servo,rnestler/servo,kindersung/servo,dvberkel/servo,paulrouget/servo,jgraham/servo,nerith/servo,jlegendary/servo,AnthonyBroadCrawford/servo,canaltinova/servo,WriterOfAlicrow/servo,sadmansk/servo,fiji-flo/servo,runarberg/servo,peterjoel/servo,szeged/servo,paulrouget/servo,rixrix/servo,mbrubeck/servo,nnethercote/servo,thiagopnts/servo,rentongzhang/servo,dvberkel/servo,g-k/servo,nick-thompson/servo,paulrouget/servo,saneyuki/servo,youprofit/servo,AnthonyBroadCrawford/servo,aweinstock314/servo,A-deLuna/servo,splav/servo,upsuper/servo,upsuper/servo,upsuper/servo,s142857/servo,CJ8664/servo,nick-thompson/servo,AnthonyBroadCrawford/servo,rixrix/servo,mdibaiee/servo,canaltinova/servo,zentner-kyle/servo,emilio/servo,bjwbell/servo,nrc/servo,deokjinkim/servo,jimberlage/servo,zhangjunlei26/servo,walac/servo,thiagopnts/servo,bjwbell/servo,pgonda/servo,anthgur/servo,karlito40/servo,splav/servo,SimonSapin/servo,KiChjang/servo,KiChjang/servo,mdibaiee/servo,samfoo/servo,notriddle/servo,dati91/servo,mbrubeck/servo,jdramani/servo,aidanhs/servo,hyowon/servo,mattnenterprise/servo,saneyuki/servo,meh/servo,KiChjang/servo,nerith/servo,dhananjay92/servo,CJ8664/servo,rnestler/servo,cbrewster/servo,j3parker/servo,pyecs/servo,codemac/servo,peterjoel/servo,larsbergstrom/servo,mattnenterprise/servo,pyfisch/servo,GreenRecycleBin/servo,A-deLuna/servo,dsandeephegde/servo,dati91/servo,saneyuki/servo,zentner-kyle/servo,jlegendary/servo,steveklabnik/servo,szeged/servo,peterjoel/servo,pyfisch/servo,dsandeephegde/servo,runarberg/servo,aidanhs/servo,anthgur/servo,meh/servo,tempbottle/servo,mattnenterprise/servo,peterjoel/servo,s142857/servo,dvberkel/servo,fiji-flo/servo,A-deLuna/servo,nnethercote/servo,thiagopnts/servo,larsbergstrom/servo,peterjoel/servo,dsandeephegde/servo,ConnorGBrewster/servo,AnthonyBroadCrawford/servo,GreenRecycleBin/servo,vks/servo,jgraham/servo,szeged/servo,fiji-flo/servo,walac/servo,zhangjunlei26/servo,larsbergstrom/servo,SimonSapin/servo,caldwell/servo,nnethercote/servo,DominoTree/servo,nerith/servo,jlegendary/servo,GyrosOfWar/servo,emilio/servo,dati91/servo,paulrouget/servo,saratang/servo,WriterOfAlicrow/servo,ConnorGBrewster/servo,jimberlage/servo,pyfisch/servo,tschneidereit/servo,tschneidereit/servo,rixrix/servo,wartman4404/servo,sadmansk/servo,peterjoel/servo,j3parker/servo,walac/servo,codemac/servo,pgonda/servo,nick-thompson/servo,sadmansk/servo,paulrouget/servo,larsbergstrom/servo,jgraham/servo,youprofit/servo,zentner-kyle/servo,mt2d2/servo,ryancanhelpyou/servo,s142857/servo,pgonda/servo,WriterOfAlicrow/servo,vks/servo,rnestler/servo,avadacatavra/servo,RenaudParis/servo,samfoo/servo,wartman4404/servo,caldwell/servo,RenaudParis/servo,boghison/servo,nick-thompson/servo,eddyb/servo,paulrouget/servo,samfoo/servo,nnethercote/servo,rentongzhang/servo,GyrosOfWar/servo,A-deLuna/servo,A-deLuna/servo,nerith/servo,rnestler/servo,saratang/servo,mt2d2/servo,walac/servo,rentongzhang/servo,thiagopnts/servo,rentongzhang/servo,sadmansk/servo,dvberkel/servo,codemac/servo,karlito40/servo,KiChjang/servo,brendandahl/servo,canaltinova/servo,GreenRecycleBin/servo,aidanhs/servo,dsandeephegde/servo,caldwell/servo,zhangjunlei26/servo,cbrewster/servo,emilio/servo,upsuper/servo,jlegendary/servo,zhangjunlei26/servo,dati91/servo,tempbottle/servo,mattnenterprise/servo,jgraham/servo,mdibaiee/servo,wartman4404/servo,saratang/servo,pyecs/servo,saneyuki/servo,walac/servo,nick-thompson/servo,splav/servo,peterjoel/servo,paulrouget/servo,tafia/servo,dati91/servo,steveklabnik/servo,jdramani/servo,mt2d2/servo,anthgur/servo,tafia/servo,meh/servo,huonw/servo,jdramani/servo,jlegendary/servo,upsuper/servo,dagnir/servo,emilio/servo,aweinstock314/servo,mdibaiee/servo,pgonda/servo,peterjoel/servo,dvberkel/servo,A-deLuna/servo,CJ8664/servo,vks/servo,dhananjay92/servo,sadmansk/servo,ryancanhelpyou/servo,canaltinova/servo,WriterOfAlicrow/servo,notriddle/servo,anthgur/servo,huonw/servo,GreenRecycleBin/servo,s142857/servo,pyfisch/servo,tafia/servo,walac/servo,thiagopnts/servo,GyrosOfWar/servo,pgonda/servo,samfoo/servo,fiji-flo/servo,j3parker/servo,g-k/servo,dagnir/servo,DominoTree/servo,caldwell/servo,aidanhs/servo,huonw/servo,nnethercote/servo,tafia/servo,rixrix/servo,splav/servo,hyowon/servo,boghison/servo,zentner-kyle/servo,dagnir/servo,vks/servo,canaltinova/servo,hyowon/servo,dhananjay92/servo,notriddle/servo,tafia/servo,karlito40/servo,splav/servo,huonw/servo,samfoo/servo,SimonSapin/servo,cbrewster/servo,bjwbell/servo,brendandahl/servo,akosel/servo,nrc/servo,runarberg/servo,dhananjay92/servo,jgraham/servo,GyrosOfWar/servo,sadmansk/servo,canaltinova/servo,j3parker/servo,brendandahl/servo,DominoTree/servo,fiji-flo/servo,anthgur/servo,notriddle/servo,larsbergstrom/servo,brendandahl/servo,g-k/servo,dagnir/servo,szeged/servo,dsandeephegde/servo,RenaudParis/servo,nerith/servo,anthgur/servo,zhangjunlei26/servo,s142857/servo,kindersung/servo,saratang/servo,jlegendary/servo,upsuper/servo,hyowon/servo,g-k/servo,dsandeephegde/servo,mdibaiee/servo,larsbergstrom/servo,KiChjang/servo,cbrewster/servo,rnestler/servo,ConnorGBrewster/servo,huonw/servo,mt2d2/servo,DominoTree/servo,notriddle/servo,hyowon/servo,jimberlage/servo,CJ8664/servo,deokjinkim/servo,avadacatavra/servo,DominoTree/servo,hyowon/servo,runarberg/servo,youprofit/servo,larsbergstrom/servo,akosel/servo,ryancanhelpyou/servo,pgonda/servo,aidanhs/servo,steveklabnik/servo,bjwbell/servo,hyowon/servo,emilio/servo,paulrouget/servo,cbrewster/servo,ConnorGBrewster/servo,nerith/servo,WriterOfAlicrow/servo,dhananjay92/servo,GreenRecycleBin/servo,wartman4404/servo,larsbergstrom/servo,jimberlage/servo,avadacatavra/servo,dati91/servo,aweinstock314/servo,steveklabnik/servo,SimonSapin/servo,rixrix/servo,deokjinkim/servo,pyecs/servo,jimberlage/servo,dati91/servo,deokjinkim/servo,avadacatavra/servo,karlito40/servo,meh/servo,bjwbell/servo,ryancanhelpyou/servo,mt2d2/servo,ConnorGBrewster/servo,tempbottle/servo,cbrewster/servo,notriddle/servo,SimonSapin/servo,nick-thompson/servo,CJ8664/servo,mbrubeck/servo,mt2d2/servo,KiChjang/servo,boghison/servo,s142857/servo,saneyuki/servo,AnthonyBroadCrawford/servo,szeged/servo,pyfisch/servo,rnestler/servo,pgonda/servo,mattnenterprise/servo,brendandahl/servo,mdibaiee/servo,pyfisch/servo,KiChjang/servo,pyecs/servo,pyfisch/servo,steveklabnik/servo,mattnenterprise/servo,avadacatavra/servo,bjwbell/servo,emilio/servo,rentongzhang/servo,GyrosOfWar/servo,codemac/servo,upsuper/servo,SimonSapin/servo,emilio/servo,walac/servo,jimberlage/servo,cbrewster/servo,vks/servo,splav/servo,emilio/servo,szeged/servo,sadmansk/servo,karlito40/servo,saneyuki/servo,rnestler/servo,jdramani/servo,fiji-flo/servo,boghison/servo,SimonSapin/servo,mbrubeck/servo,wartman4404/servo,jimberlage/servo,codemac/servo,eddyb/servo,tschneidereit/servo,tempbottle/servo,GreenRecycleBin/servo,j3parker/servo,deokjinkim/servo,WriterOfAlicrow/servo,tschneidereit/servo,anthgur/servo,kindersung/servo,deokjinkim/servo,caldwell/servo,youprofit/servo,mbrubeck/servo,KiChjang/servo,nrc/servo,kindersung/servo,rixrix/servo,dhananjay92/servo,jlegendary/servo,nrc/servo,nnethercote/servo,youprofit/servo,KiChjang/servo,steveklabnik/servo,tschneidereit/servo,wartman4404/servo,samfoo/servo,GyrosOfWar/servo,nnethercote/servo,peterjoel/servo,nnethercote/servo,SimonSapin/servo,mbrubeck/servo,nick-thompson/servo,runarberg/servo,larsbergstrom/servo,zentner-kyle/servo,aweinstock314/servo,tschneidereit/servo,aweinstock314/servo,mt2d2/servo,j3parker/servo,g-k/servo,wartman4404/servo,g-k/servo,dagnir/servo,canaltinova/servo,notriddle/servo,thiagopnts/servo,RenaudParis/servo,rixrix/servo,s142857/servo,samfoo/servo,DominoTree/servo,notriddle/servo,jimberlage/servo,eddyb/servo,RenaudParis/servo,aidanhs/servo,dhananjay92/servo,splav/servo,CJ8664/servo,youprofit/servo,dagnir/servo,avadacatavra/servo,GreenRecycleBin/servo,tempbottle/servo,DominoTree/servo,tschneidereit/servo,huonw/servo,ryancanhelpyou/servo,huonw/servo,jgraham/servo,ConnorGBrewster/servo,thiagopnts/servo,caldwell/servo,paulrouget/servo,akosel/servo,A-deLuna/servo,codemac/servo,j3parker/servo,eddyb/servo,boghison/servo,dsandeephegde/servo,kindersung/servo,pyfisch/servo,AnthonyBroadCrawford/servo,ryancanhelpyou/servo,dvberkel/servo,RenaudParis/servo,DominoTree/servo,boghison/servo,karlito40/servo,upsuper/servo,aweinstock314/servo,paulrouget/servo,fiji-flo/servo,aidanhs/servo,nnethercote/servo,thiagopnts/servo,cbrewster/servo,bjwbell/servo,codemac/servo,youprofit/servo,pyecs/servo,zhangjunlei26/servo,mattnenterprise/servo,szeged/servo,g-k/servo,pyecs/servo,steveklabnik/servo,avadacatavra/servo,nrc/servo,zhangjunlei26/servo,ConnorGBrewster/servo,anthgur/servo,saneyuki/servo,dsandeephegde/servo,dvberkel/servo,saratang/servo,GreenRecycleBin/servo,GreenRecycleBin/servo,runarberg/servo,zentner-kyle/servo,jdramani/servo,akosel/servo,sadmansk/servo,larsbergstrom/servo,vks/servo,meh/servo,saneyuki/servo,rnestler/servo,nerith/servo,jdramani/servo,jgraham/servo,deokjinkim/servo,nnethercote/servo,saneyuki/servo,pyfisch/servo,canaltinova/servo,boghison/servo,rentongzhang/servo,pyecs/servo,eddyb/servo,DominoTree/servo,zhangjunlei26/servo,rixrix/servo,zhangjunlei26/servo,saratang/servo,karlito40/servo,eddyb/servo,jdramani/servo,szeged/servo,pyfisch/servo,splav/servo,eddyb/servo,DominoTree/servo,vks/servo,CJ8664/servo,jimberlage/servo,notriddle/servo,zentner-kyle/servo,RenaudParis/servo