Added docs on how to call actions from actions
Added docs on how to call actions from actions

Fixes https://github.com/fastlane/fastlane/issues/826

adellibovi/fastlane,emmaviolet/fastlane,manuyavuz/fastlane,rimarsh/fastlane,cbowns/fastlane,mathiasAichinger/fastlane,adamcohenrose/fastlane,neonichu/fastlane,emmaviolet/fastlane,manuyavuz/fastlane,daveanderson/fastlane,Acorld/fastlane,fabiomassimo/fastlane,jeeftor/fastlane,busce/fastlane,ExtremeMan/fastlane,marcelofabri/fastlane,farkasseb/fastlane,powtac/fastlane,sinoru/fastlane,bassrock/fastlane,ashfurrow/fastlane,kazuhidet/fastlane,JamesKuang/fastlane,SandyChapman/fastlane,tpalmer/fastlane,cbowns/fastlane,fabiomassimo/fastlane,fikeminkel/fastlane,mathiasAichinger/fastlane,revile/fastlane,carlosefonseca/fastlane,mgamer/fastlane,smallmiro/fastlane,marcelofabri/fastlane,fastlane/fastlane,SiarheiFedartsou/fastlane,revile/fastlane,Sajjon/fastlane,KrauseFx/fastlane,Fanagame/fastlane,Liquidsoul/fastlane,tommeier/fastlane,ffittschen/fastlane,cpk1/fastlane,joshdholtz/fastlane,ffittschen/fastlane,nafu/fastlane,Acorld/fastlane,brbulic/fastlane,kohtenko/fastlane,ssmiech/fastlane,jzallas/fastlane,soxjke/fastlane,jeeftor/fastlane,icecrystal23/fastlane,manuyavuz/fastlane,fulldecent/fastlane,futuretap/fastlane,lmirosevic/fastlane,taquitos/fastlane,revile/fastlane,ExtremeMan/fastlane,st3fan/fastlane,mgamer/fastlane,milch/fastlane,adellibovi/fastlane,jzallas/fastlane,sschlein/fastlane,Liquidsoul/fastlane,Fanagame/fastlane,soxjke/fastlane,pubuim/fastlane,nafu/fastlane,matthewellis/fastlane,adamcohenrose/fastlane,fastlane/fastlane,ashfurrow/fastlane,mandrizzle/fastlane,lacostej/fastlane,bgannin/fastlane,oysta/fastlane,bolom/fastlane,carlosefonseca/fastlane,carlosefonseca/fastlane,tcurdt/fastlane,smallmiro/fastlane,ashfurrow/fastlane,ExtremeMan/fastlane,sschlein/fastlane,lyndsey-ferguson/fastlane,carlosefonseca/fastlane,Fanagame/fastlane,sschlein/fastlane,ffittschen/fastlane,allewun/fastlane,olegoid/fastlane,keatongreve/fastlane,smallmiro/fastlane,kazuhidet/fastlane,lmirosevic/fastlane,NicholasFFox/fastlane,kndl/fastlane,futuretap/fastlane,adellibovi/fastlane,KrauseFx/fastlane,orta/fastlane,SemenovAlexander/fastlane,olegoid/fastlane,lyndsey-ferguson/fastlane,mandrizzle/fastlane,lacostej/fastlane,luongm/fastlane,luongm/fastlane,joshrlesch/fastlane,fcy/fastlane,joshrlesch/fastlane,jaleksynas/fastlane,jaleksynas/fastlane,iMokhles/fastlane,iCell/fastlane,adellibovi/fastlane,Liquidsoul/fastlane,lmirosevic/fastlane,mandrizzle/fastlane,jzallas/fastlane,busce/fastlane,javibm/fastlane,marcelofabri/fastlane,adamcohenrose/fastlane,Fanagame/fastlane,icecrystal23/fastlane,rimarsh/fastlane,lyndsey-ferguson/fastlane,bolom/fastlane,fabiomassimo/fastlane,jfresen/fastlane,mbogh/fastlane,ExtremeMan/fastlane,cpk1/fastlane,busce/fastlane,dowjones/fastlane,ffittschen/fastlane,jaleksynas/fastlane,sylvek/fastlane,hjanuschka/fastlane,matthewellis/fastlane,vronin/fastlane,bgannin/fastlane,jeeftor/fastlane,powtac/fastlane,manuyavuz/fastlane,smallmiro/fastlane,danielbowden/fastlane,nafu/fastlane,fulldecent/fastlane,cpk1/fastlane,tcurdt/fastlane,st3fan/fastlane,busce/fastlane,jorgeazevedo/fastlane,dral3x/fastlane,Liquidsoul/fastlane,keatongreve/fastlane,oronbz/fastlane,kndl/fastlane,joshdholtz/fastlane,sylvek/fastlane,powtac/fastlane,matthewellis/fastlane,powtac/fastlane,busce/fastlane,tpalmer/fastlane,ssmiech/fastlane,luongm/fastlane,Liquidsoul/fastlane,joshdholtz/fastlane,mandrizzle/fastlane,bolom/fastlane,brbulic/fastlane,jzallas/fastlane,jeeftor/fastlane,cpunion/fastlane,taquitos/fastlane,fulldecent/fastlane,ffittschen/fastlane,brbulic/fastlane,jorgeazevedo/fastlane,cpk1/fastlane,allewun/fastlane,farkasseb/fastlane,tmtrademarked/fastlane,tcurdt/fastlane,taquitos/fastlane,brbulic/fastlane,jfresen/fastlane,farkasseb/fastlane,fulldecent/fastlane,mbogh/fastlane,SemenovAlexander/fastlane,mbogh/fastlane,cbowns/fastlane,iCell/fastlane,fcy/fastlane,KrauseFx/fastlane,nafu/fastlane,ssmiech/fastlane,olegoid/fastlane,jeeftor/fastlane,Liquidsoul/fastlane,ExtremeMan/fastlane,ashfurrow/fastlane,manuyavuz/fastlane,taquitos/fastlane,smallmiro/fastlane,joshdholtz/fastlane,cbowns/fastlane,farkasseb/fastlane,fabiomassimo/fastlane,Acorld/fastlane,SemenovAlexander/fastlane,SiarheiFedartsou/fastlane,tmtrademarked/fastlane,ffittschen/fastlane,tpalmer/fastlane,farkasseb/fastlane,smallmiro/fastlane,rimarsh/fastlane,neonichu/fastlane,sylvek/fastlane,jfresen/fastlane,jfresen/fastlane,joshrlesch/fastlane,rimarsh/fastlane,bgannin/fastlane,cpk1/fastlane,keatongreve/fastlane,phatblat/fastlane,iCell/fastlane,ExtremeMan/fastlane,iMokhles/fastlane,hjanuschka/fastlane,mathiasAichinger/fastlane,tommeier/fastlane,sschlein/fastlane,SandyChapman/fastlane,thelvis4/fastlane,NicholasFFox/fastlane,javibm/fastlane,futuretap/fastlane,taquitos/fastlane,st3fan/fastlane,luongm/fastlane,mgamer/fastlane,jaleksynas/fastlane,RishabhTayal/fastlane,neonichu/fastlane,Econa77/fastlane,olegoid/fastlane,cpk1/fastlane,marcelofabri/fastlane,bgannin/fastlane,mbogh/fastlane,tmtrademarked/fastlane,oysta/fastlane,thelvis4/fastlane,thelvis4/fastlane,matthewellis/fastlane,NicholasFFox/fastlane,sylvek/fastlane,keatongreve/fastlane,fcy/fastlane,lacostej/fastlane,milch/fastlane,dral3x/fastlane,tcurdt/fastlane,jeeftor/fastlane,Acorld/fastlane,lyndsey-ferguson/fastlane,mbogh/fastlane,daveanderson/fastlane,tommeier/fastlane,adamcohenrose/fastlane,lyndsey-ferguson/fastlane,bolom/fastlane,KrauseFx/fastlane,joshdholtz/fastlane,lacostej/fastlane,iMokhles/fastlane,SandyChapman/fastlane,cbowns/fastlane,KrauseFx/fastlane,daveanderson/fastlane,cpunion/fastlane,revile/fastlane,SemenovAlexander/fastlane,lyndsey-ferguson/fastlane,smallmiro/fastlane,sylvek/fastlane,fcy/fastlane,fabiomassimo/fastlane,adamcohenrose/fastlane,iMokhles/fastlane,hjanuschka/fastlane,iCell/fastlane,kndl/fastlane,fcy/fastlane,mgrebenets/fastlane,sylvek/fastlane,jfresen/fastlane,fastlane/fastlane,futuretap/fastlane,nafu/fastlane,RishabhTayal/fastlane,thelvis4/fastlane,dral3x/fastlane,brbulic/fastlane,dral3x/fastlane,jzallas/fastlane,soxjke/fastlane,bassrock/fastlane,mathiasAichinger/fastlane,javibm/fastlane,tpalmer/fastlane,bassrock/fastlane,bassrock/fastlane,cpunion/fastlane,mgrebenets/fastlane,danielbowden/fastlane,carlosefonseca/fastlane,KrauseFx/fastlane,allewun/fastlane,mathiasAichinger/fastlane,NicholasFFox/fastlane,neonichu/fastlane,tcurdt/fastlane,thasegaw/fastlane,tommeier/fastlane,cpunion/fastlane,icecrystal23/fastlane,javibm/fastlane,tmtrademarked/fastlane,thelvis4/fastlane,dowjones/fastlane,lmirosevic/fastlane,marcelofabri/fastlane,iMokhles/fastlane,SiarheiFedartsou/fastlane,brbulic/fastlane,kndl/fastlane,hjanuschka/fastlane,adellibovi/fastlane,icecrystal23/fastlane,phatblat/fastlane,enozero/fastlane,futuretap/fastlane,neonichu/fastlane,kazuhidet/fastlane,nafu/fastlane,phatblat/fastlane,fcy/fastlane,bolom/fastlane,ssmiech/fastlane,kazuhidet/fastlane,mathiasAichinger/fastlane,sschlein/fastlane,rimarsh/fastlane,mgamer/fastlane,oronbz/fastlane,anurlybayev/fastlane,dral3x/fastlane,oronbz/fastlane,SandyChapman/fastlane,oysta/fastlane,soxjke/fastlane,oronbz/fastlane,SiarheiFedartsou/fastlane,oysta/fastlane,sinoru/fastlane,cpunion/fastlane,milch/fastlane,fulldecent/fastlane,iMokhles/fastlane,rimarsh/fastlane,enozero/fastlane,fabiomassimo/fastlane,fastlane/fastlane,lmirosevic/fastlane,jaleksynas/fastlane,Acorld/fastlane,st3fan/fastlane,fastlane/fastlane,tcurdt/fastlane,joshrlesch/fastlane,tmtrademarked/fastlane,Acorld/fastlane,kndl/fastlane,allewun/fastlane,oysta/fastlane,SemenovAlexander/fastlane,jorgeazevedo/fastlane,bgannin/fastlane,lyndsey-ferguson/fastlane,Sajjon/fastlane,tmtrademarked/fastlane,Fanagame/fastlane,sschlein/fastlane,busce/fastlane,danielbowden/fastlane,kazuhidet/fastlane,javibm/fastlane,ffittschen/fastlane,ssmiech/fastlane,fikeminkel/fastlane,oronbz/fastlane,kndl/fastlane,thasegaw/fastlane,oysta/fastlane,taquitos/fastlane,brbulic/fastlane,tpalmer/fastlane,adellibovi/fastlane,sinoru/fastlane,phatblat/fastlane,iCell/fastlane,jorgeazevedo/fastlane,farkasseb/fastlane,jaleksynas/fastlane,vronin/fastlane,JamesKuang/fastlane,neonichu/fastlane,thelvis4/fastlane,mgrebenets/fastlane,olegoid/fastlane,manuyavuz/fastlane,mandrizzle/fastlane,RishabhTayal/fastlane,tpalmer/fastlane,danielbowden/fastlane,fulldecent/fastlane,enozero/fastlane,kazuhidet/fastlane,mgrebenets/fastlane,joshdholtz/fastlane,kohtenko/fastlane,dowjones/fastlane,soxjke/fastlane,nafu/fastlane,danielbowden/fastlane,mgrebenets/fastlane,RishabhTayal/fastlane,jaleksynas/fastlane,lmirosevic/fastlane,vronin/fastlane,adellibovi/fastlane,dowjones/fastlane,carlosefonseca/fastlane,vronin/fastlane,Econa77/fastlane,thasegaw/fastlane,adamcohenrose/fastlane,tommeier/fastlane,icecrystal23/fastlane,mathiasAichinger/fastlane,bassrock/fastlane,Sajjon/fastlane,allewun/fastlane,sinoru/fastlane,SiarheiFedartsou/fastlane,phatblat/fastlane,st3fan/fastlane,olegoid/fastlane,Econa77/fastlane,thasegaw/fastlane,lmirosevic/fastlane,tommeier/fastlane,daveanderson/fastlane,mgamer/fastlane,carlosefonseca/fastlane,daveanderson/fastlane,marcelofabri/fastlane,powtac/fastlane,thelvis4/fastlane,mandrizzle/fastlane,rimarsh/fastlane,iCell/fastlane,danielbowden/fastlane,phatblat/fastlane,milch/fastlane,Econa77/fastlane,Econa77/fastlane,jorgeazevedo/fastlane,fabiomassimo/fastlane,neonichu/fastlane,busce/fastlane,ssmiech/fastlane,daveanderson/fastlane,matthewellis/fastlane,anurlybayev/fastlane,sschlein/fastlane,hjanuschka/fastlane,soxjke/fastlane,cbowns/fastlane,lacostej/fastlane,icecrystal23/fastlane,thasegaw/fastlane,jfresen/fastlane,fulldecent/fastlane,futuretap/fastlane,adamcohenrose/fastlane,NicholasFFox/fastlane,RishabhTayal/fastlane,taquitos/fastlane,keatongreve/fastlane,kndl/fastlane,mgamer/fastlane,SandyChapman/fastlane,marcelofabri/fastlane,SandyChapman/fastlane,orta/fastlane,hjanuschka/fastlane,bgerstle/fastlane,RishabhTayal/fastlane,fastlane/fastlane,enozero/fastlane,ExtremeMan/fastlane,ashfurrow/fastlane,bolom/fastlane,mbogh/fastlane,tmtrademarked/fastlane,Fanagame/fastlane,ashfurrow/fastlane,oronbz/fastlane,dowjones/fastlane,sinoru/fastlane,tcurdt/fastlane,bassrock/fastlane,thasegaw/fastlane,vronin/fastlane,dowjones/fastlane,joshrlesch/fastlane,KrauseFx/fastlane,jorgeazevedo/fastlane,ssmiech/fastlane,Sajjon/fastlane,oronbz/fastlane,danielbowden/fastlane,mgamer/fastlane,javibm/fastlane,bgannin/fastlane,mgrebenets/fastlane,milch/fastlane,sinoru/fastlane,Econa77/fastlane,st3fan/fastlane,cpunion/fastlane,SemenovAlexander/fastlane,bgerstle/fastlane,cpk1/fastlane,tpalmer/fastlane,joshdholtz/fastlane,Acorld/fastlane,SiarheiFedartsou/fastlane,joshrlesch/fastlane,NicholasFFox/fastlane,jfresen/fastlane,enozero/fastlane,cbowns/fastlane,matthewellis/fastlane,oysta/fastlane,dowjones/fastlane,powtac/fastlane,luongm/fastlane,Sajjon/fastlane,iCell/fastlane,st3fan/fastlane,powtac/fastlane,javibm/fastlane,joshrlesch/fastlane,farkasseb/fastlane,Sajjon/fastlane,milch/fastlane,olegoid/fastlane,tommeier/fastlane,enozero/fastlane,pubuim/fastlane,NicholasFFox/fastlane,lacostej/fastlane,kazuhidet/fastlane,sylvek/fastlane,Econa77/fastlane,matthewellis/fastlane,dral3x/fastlane,mgrebenets/fastlane,Liquidsoul/fastlane,bolom/fastlane,mandrizzle/fastlane,RishabhTayal/fastlane,SandyChapman/fastlane,luongm/fastlane,milch/fastlane,jzallas/fastlane,thasegaw/fastlane,allewun/fastlane,fcy/fastlane,jeeftor/fastlane,Fanagame/fastlane,dral3x/fastlane,ashfurrow/fastlane,bgannin/fastlane,keatongreve/fastlane,Sajjon/fastlane,enozero/fastlane,hjanuschka/fastlane,manuyavuz/fastlane,SiarheiFedartsou/fastlane,soxjke/fastlane,daveanderson/fastlane,vronin/fastlane,mbogh/fastlane,SemenovAlexander/fastlane,jzallas/fastlane,phatblat/fastlane,allewun/fastlane,revile/fastlane,cpunion/fastlane,revile/fastlane,revile/fastlane,sinoru/fastlane,jorgeazevedo/fastlane,luongm/fastlane,futuretap/fastlane,iMokhles/fastlane,keatongreve/fastlane,vronin/fastlane