api/types: document classic swarm "Node" field
api/types: document classic swarm "Node" field

Signed-off-by: Sebastiaan van Stijn <64b2b6d12bfe4baae7dad3d018f8cbf6b0e7a044@gone.nl>

flavio/docker,moul/docker,jameszhan/docker,moby/moby,nawawi/docker,ibuildthecloud/docker,konstruktoid/docker-1,nalind/docker,yosifkit/docker,konstruktoid/docker-upstream,nawawi/docker,cpuguy83/docker,jameszhan/docker,flavio/docker,vdemeester/docker,mahak/docker,estesp/docker,dims/docker,moby/moby,trebonian/docker,trebonian/docker,Mokolea/docker,ibuildthecloud/docker,moul/docker,SvenDowideit/docker,jimjag/docker,konstruktoid/docker-upstream,cpuguy83/docker,jvanz/docker,cpuguy83/docker,kojiromike/docker,SvenDowideit/docker,AkihiroSuda/docker,thaJeztah/docker,mahak/docker,trebonian/docker,dims/docker,bearstech/moby,jameszhan/docker,bearstech/moby,jimjag/docker,kojiromike/docker,konstruktoid/docker-1,nalind/docker,jimjag/docker,djs55/docker,djs55/docker,ibuildthecloud/docker,estesp/docker,justincormack/docker,docker/docker,gnailuy/docker,jthelin/docker,cpuguy83/docker,Mokolea/docker,docker/docker,nalind/docker,justincormack/docker,yosifkit/docker,docker/docker,mahak/docker,nawawi/docker,AkihiroSuda/docker,djs55/docker,kojiromike/docker,jimjag/docker,thaJeztah/docker,AkihiroSuda/docker,bearstech/moby,trebonian/docker,nalind/docker,jvanz/docker,ibuildthecloud/docker,Ramzec/docker,thaJeztah/docker,gnailuy/docker,vdemeester/docker,jthelin/docker,moul/docker,ibuildthecloud/docker,SvenDowideit/docker,Ramzec/docker,flavio/docker,dims/docker,estesp/docker,Mokolea/docker,vdemeester/docker,yosifkit/docker,bearstech/moby,Ramzec/docker,flavio/docker,paralin/docker,konstruktoid/docker-upstream,moul/docker,paralin/docker,nawawi/docker,moby/moby,konstruktoid/docker-upstream,yosifkit/docker,Mokolea/docker,mahak/docker,justincormack/docker,Ramzec/docker,thaJeztah/docker,paralin/docker,gnailuy/docker,AkihiroSuda/docker,moby/moby,konstruktoid/docker-1,gnailuy/docker,jvanz/docker,paralin/docker