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.
 
+Use process termination mailbox and AST. No CPU usage if no event occurs.
+
 - [Supervisor-vms: A Process Control System for OpenVMS](#supervisor-vms-a-process-control-system-for-openvms)
   - [Requirements](#requirements)
   - [Components](#components)
   - [Running supervisord](#running-supervisord)
     - [supervisord Command-Line Options](#supervisord-command-line-options)
@@ -4,8 +6,10 @@
 - [Supervisor-vms: A Process Control System for OpenVMS](#supervisor-vms-a-process-control-system-for-openvms)
   - [Requirements](#requirements)
   - [Components](#components)
   - [Running supervisord](#running-supervisord)
     - [supervisord Command-Line Options](#supervisord-command-line-options)
+  - [Running supervisorctl](#running-supervisorctl)
+    - [supervisorctl Command-Line Options](#supervisorctl-command-line-options)
 
 It was inspired by [[supervisor](http://supervisord.org/)]
 
@@ -9,9 +13,7 @@
 
 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.
+Read the supervisor documentation is probably a good idea. Many of configuration parameters are the same.
 
 ## Requirements
 1. Python 3.10 (VSI version)
@@ -35,7 +37,7 @@
 The command-line client talks to the server across a mailbox (SUPERVISORD_CMD logical)
 
 ## Running supervisord
-
+Required privileges: **ALTPRI, SYSNAM, PRMMBX, IMPERSONATE, SETPRV, WORLD**
 ### supervisord Command-Line Options
 **-c FILE, --configuration=FILE**
 
@@ -52,3 +54,19 @@
 **-h, --help**
 
   Show supervisord command help.
+
+## Running supervisorctl
+Required privilege: **PRMMBX, SYSNAM**
+### supervisorctl Command-Line Options
+**-c FILE, --configuration=FILE**
+
+  The path to a **supervisord** configuration file. Unix syntax should be used
+
+**-p pwd, --password=pwd**
+
+  Optional password, used by **supervisorctl**.
+
+**-h, --help**
+
+  Show supervisord command help.
+