Add documentation on Swift backend configuration
Add documentation on Swift backend configuration

hartsock/vault,quixoten/vault,Aloomaio/vault,LolalyLuo/vault,Banno/vault,chrishoffman/vault,jmhardison/vault,tallpauley/vault,lemondrank/vault,hartsock/vault,kingland/vault,Aloomaio/vault,LolalyLuo/vault,rnaveiras/vault,tallpauley/vault,Aloomaio/vault,jmhardison/vault,skippy/vault,kingland/vault,chrishoffman/vault,rnaveiras/vault,rnaveiras/vault,ryon/vault,rnaveiras/vault,hartsock/vault,Caiyeon/vault,martin-ducar-gd/vault,quixoten/vault,lirao/vault,Aloomaio/vault,mhurne/vault,mhurne/vault,quixoten/vault,doodles526/vault,hashicorp/vault,deverton/hashicorp-vault,mymercurialsky/vault,jam-pot/vault,MonsantoCo/vault,danielsomerfield/vault,hashicorp/vault,mgk/vault,jmhardison/vault,jgcallero/vault,hartsock/vault,naunga/vault,kingland/vault,wjam/vault,Banno/vault,Caiyeon/vault,michaelansel/vault,quixoten/vault,jgcallero/vault,hashicorp/vault,joelthompson/vault,kingland/vault,lemondrank/vault,jmhardison/vault,ryon/vault,mymercurialsky/vault,kingland/vault,jam-pot/vault,rnaveiras/vault,doodles526/vault,danielsomerfield/vault,hashicorp/vault,deverton/hashicorp-vault,naunga/vault,cimarron-pistoncloud/vault,joelthompson/vault,hartsock/vault,memory/vault,mgk/vault,mgk/vault,cimarron-pistoncloud/vault,joelthompson/vault,wjam/vault,joelthompson/vault,peteryhwong/vault,memory/vault,mgk/vault,martin-ducar-gd/vault,peteryhwong/vault,skippy/vault,MonsantoCo/vault,lirao/vault,hashicorp/vault,jmhardison/vault,hashicorp/vault,michaelansel/vault