README.md in capistrano3-puma-5.1.1 vs README.md in capistrano3-puma-5.2.0

@@ -126,10 +126,16 @@
       RAILS_ENV=development
       PUMA_METRICS_HTTP=tcp://0.0.0.0:9393
   ]
 ```
 
+To use [phased restart](https://github.com/puma/puma/blob/master/docs/restart.md) for zero downtime deployments:
+
+```ruby
+  set :puma_phased_restart, true
+```
+
 ### Systemd Socket Activation
 
 Systemd socket activation starts your app upon first request if it is not already running
 
 ```ruby
@@ -190,9 +196,10 @@
     set :puma_systemctl_user, :system # accepts :user
     set :puma_enable_lingering, fetch(:puma_systemctl_user) != :system # https://wiki.archlinux.org/index.php/systemd/User#Automatic_start-up_of_systemd_user_instances
     set :puma_lingering_user, fetch(:user)
     set :puma_service_unit_env_file, nil
     set :puma_service_unit_env_vars, []
+    set :puma_phased_restart, false
 
     set :nginx_config_name, "#{fetch(:application)}_#{fetch(:stage)}"
     set :nginx_flags, 'fail_timeout=0'
     set :nginx_http_flags, fetch(:nginx_flags)
     set :nginx_server_name, "localhost #{fetch(:application)}.local"