Update documentation

README.md

+# Supervisor-vms: A Process Control System for OpenVMS
+Supervisor-vms is a tools that allows to monitor and control a number of processes on OpenVMS systems.
 
 - [Supervisor-vms: A Process Control System for OpenVMS](#supervisor-vms-a-process-control-system-for-openvms)
   - [Requirements](#requirements)
   - [Components](#components)
@@ -1,12 +3,11 @@
 
 - [Supervisor-vms: A Process Control System for OpenVMS](#supervisor-vms-a-process-control-system-for-openvms)
   - [Requirements](#requirements)
   - [Components](#components)
-
-# Supervisor-vms: A Process Control System for OpenVMS
-Supervisor-vms is a tools that allows to monitor and control a number of processes on OpenVMS systems.
+  - [Running supervisord](#running-supervisord)
+    - [supervisord Command-Line Options](#supervisord-command-line-options)
 
 It was inspired by [[supervisor](http://supervisord.org/)]
 
 Many of configuration parameters are the same.
 
@@ -8,9 +9,11 @@
 
 It was inspired by [[supervisor](http://supervisord.org/)]
 
 Many of configuration parameters are the same.
 
+Use process termination mailbox, and AST. No CPU usage if no event occurs.
+
 ## Requirements
 1. Python 3.10 (VSI version)
 2. ovms module
 
@@ -13,6 +16,7 @@
 ## Requirements
 1. Python 3.10 (VSI version)
 2. ovms module
 
+Probably better to use the LD image which contains all the necessary modules.
 ## Components
 
@@ -17,6 +21,6 @@
 ## Components
 
-All logicals are in defined into table **SUPERVISORD_TABLE**
+All logicals are defined in table **SUPERVISORD_TABLE**
 
 **supervisord.py**
 
@@ -30,3 +34,17 @@
 
 The command-line client talks to the server across a mailbox (SUPERVISORD_CMD logical)
 
+## Running supervisord
+
+### supervisord Command-Line Options
+**-c FILE, --configuration=FILE**
+
+  The path to a **supervisord** configuration file. Unix syntax should be used
+
+**-n, --nodaemon**
+
+  Run supervisord in the foreground.
+
+**-h, --help**
+
+  Show supervisord command help.