add some platform support details
add some platform support details

pronix/postgresql,GitBytes/postgresql,hw-cookbooks/postgresql,livepy/postgresql,rastasheep/postgresql,Unholster/postgresql,yakara-ltd/postgresql,chiemi627/postgresql,pronix/postgresql,patcon/postgresql,eheydrick/postgresql,inetsys/postgresql,NREL-cookbooks/postgresql,livepy/postgresql,dwashko/chef-postgresql,NREL-cookbooks/postgresql,ozzyogkush/postgresql,patcon/postgresql,wearefuturegov/postgresql,ozzyogkush/postgresql,rastasheep/postgresql,chiemi627/postgresql,eheydrick/postgresql,sous-chefs/postgresql,wearefuturegov/postgresql,h4ck3rm1k3/postgresql,gsaslis/postgresql,sous-chefs/postgresql,inetsys/postgresql,yakara-ltd/postgresql,hw-cookbooks/postgresql,h4ck3rm1k3/postgresql,gsaslis/postgresql,GitBytes/postgresql,dwashko/chef-postgresql,Unholster/postgresql