Update README.md

Updated instruction for IP params and typos fixed

README.md

@@ -1,22 +1,24 @@
 # Pinger
-**Pinger** is a simple PowerShell script that pings the specified list of hosts, at regular intrervals, for the specified time.
+**Pinger** is a simple PowerShell script that pings the specified list of hosts at regular intervals for a specified time.
 
 If the time specified through the parameter **Seconds** is zero that the script never terminates and CTRL-C is needed to terminate it.
 
 It is possible to specify the delay between the pings using the optional parameter **Delay**. 
 
-If **Delay** is not specified the default value is **160** seconds.
+If **Delay** is not specified, the default value is **160** seconds.
 
 The script is given **AS IS** and it is under the **AGPL Aferro license 3.0**.
 
 For more information about the license terms please refer tot the **LICENSE** file distributed with the project.
 ## Usage
 
 **\Pinger.ps1** **Ip1**,**Ip2**,...,**Ipn** [**-Delay** seconds] [**-Seconds** seconds]
-- **Ip1**,**Ip2**,...,**Ipn**: the list of coma separated addresses to ping (e.g.: *10.0.0.1,10.0.0.2,10.0.0.10*)
-- **-Delay**: the delay in seconds between one ping operation to the other one. If is not specified the default is 160 seconds
-- **-Seconds**: for how long to do execute the program. If is not specified, or if zero is specified it will execute for ever.
+- **Ip1**,**Ip2**,...,**Ipn**: the list of coma-separated addresses to ping (e.g.: *10.0.0.1,10.0.0.2,10.0.0.10*)
+
+  Optionally, you can add a description using this format: IP:Description. Example: 10.0.0.1:server1,10.0.0.3:serverTwo,.. etc.
+- **-Delay**: the delay in seconds between one ping operation and the other one. If it is not specified, the default is 160 seconds
+- **-Seconds**: for how long to do execute the program. If it is not specified, or if zero is specified it will execute for ever.
 
 ## Example
 
-**.\Pinger.ps1** "192.168.51.10","192.168.51.30","192.168.51.50","192.168.51.70","192.168.51.90" **-Seconds** 0 **-Delay** 15
+**.\Pinger.ps1** "192.168.51.10:ServerX","192.168.51.30:HSMPED01","192.168.51.50","192.168.51.70:MACOSSrv","192.168.51.90" **-Seconds** 0 **-Delay** 15