Add undocumented options to README

...and group options based on whether they're passed as options to sidekiq vs whether they're used to configure how capistrano behaves

README.md

@@ -31,28 +31,36 @@ require 'capistrano/sidekiq/monit' #to require monit tasks # Only for capistrano
 Configurable options, shown here with defaults:
 
 ```ruby
-:sidekiq_default_hooks => true
+# Sidekiq options
+:sidekiq_config => nil # if you have a config/sidekiq.yml, do not forget to set this.
 :sidekiq_pid => File.join(shared_path, 'tmp', 'pids', 'sidekiq-0.pid') # if you specify a pidfile in your sidekiq_config file that value will be used as the default.
 :sidekiq_env => fetch(:rack_env, fetch(:rails_env, fetch(:stage)))
 :sidekiq_log => File.join(shared_path, 'log', 'sidekiq.log')
-:sidekiq_options => nil
 :sidekiq_require => nil
 :sidekiq_tag => nil
-:sidekiq_config => nil # if you have a config/sidekiq.yml, do not forget to set this.
 :sidekiq_queue => nil
-:sidekiq_timeout => 10
+:sidekiq_concurrency => nil
+:sidekiq_options => nil
+
+:sidekiq_timeout => 10 # Used when stopping sidekiq
+
+# Capistrano options
+:sidekiq_default_hooks => true
 :sidekiq_role => :app
 :sidekiq_processes => 1
-:sidekiq_concurrency => nil
+:sidekiq_user => nil #user to run sidekiq as
+:start_sidekiq_in_background => false
+:stop_sidekiq_in_background => false
+:sidekiq_run_in_background => false # like setting both :start_ and :stop_sidekiq_in_background to true
+:sidekiq_use_signals => false # if :stop_sidekiq_in_background is true, use signals for quite & stop
 :sidekiq_monit_templates_path => 'config/deploy/templates'
 :sidekiq_monit_use_sudo => true
-:sidekiq_user => nil #user to run sidekiq as
 
 # Options only for Capistrano 2.5
 :sidekiq_cmd => "#{fetch(:bundle_cmd, "bundle")} exec sidekiq"
 :sidekiqctl_cmd => "#{fetch(:bundle_cmd, "bundle")} exec sidekiqctl"
 
-# Deprecated options
+# Deprecated Sidekiq options
 :sidekiq_options_per_process => nil
 ```