welcome page and documentatino

config/routes.rb

@@ -72,6 +72,7 @@ Rails.application.routes.draw do
     end
   end
 
-  # Root route
+  # Public pages
-  root to: proc { [200, {}, ["SMS Gateway API v1.0"]] }
+  get "docs", to: "pages#docs"
+  root to: "pages#home"
 end