add documentation and fix --help

README.md

@@ -132,12 +132,13 @@ To run Crono daemon, in your Rails project root directory:
 
 crono usage:
 ```
-Usage: crono [options]
+Usage: crono [options] start|stop|restart|run
     -C, --cronotab PATH              Path to cronotab file (Default: config/cronotab.rb)
     -L, --logfile PATH               Path to writable logfile (Default: log/crono.log)
-    -P, --pidfile PATH               Path to pidfile (Default: tmp/pids/crono.pid)
-    -d, --[no-]daemonize             Daemonize process (Default: false)
-    -e, --environment ENV            Application environment (Default: development)
+        --piddir PATH                Path to piddir (Default: tmp/pids)
+    -N, --process_name name          Name of the process (Default: crono)
+    -m, --monitor                    Start monitor process for a deamon (Default false)
+    -e, --environment ENV Application environment (Default: development)
 ```
 
 

lib/crono/cli.rb

@@ -132,7 +132,7 @@ module Crono
           config.logfile = logfile
         end
 
-        opts.on("-P", "--pidfile PATH", "Path to pidfile (Default: #{config.pidfile})") do |pidfile|
+        opts.on("-P", "--pidfile PATH", "Deprecated! use --piddir with --process_name; Path to pidfile (Default: #{config.pidfile})") do |pidfile|
           config.pidfile = pidfile
         end
 
@@ -140,7 +140,7 @@ module Crono
           config.piddir = piddir
         end
 
-        opts.on("-N", "--process_name name", "Name of the process (Default: #{config.process_name})") do |process_name|
+        opts.on("-N", "--process_name NAME", "Name of the process (Default: #{config.process_name})") do |process_name|
           config.process_name = process_name
         end
 

lib/crono/config.rb

@@ -13,6 +13,7 @@ module Crono
     def initialize
       self.cronotab = CRONOTAB
       self.logfile  = LOGFILE
+      @pidfile = PIDFILE
       self.piddir = PIDDIR
       self.process_name = PROCESS_NAME
       self.daemonize = false