diff --git a/README.md b/README.md
index 3bef872..15e4833 100644
--- a/README.md
+++ b/README.md
@@ -38,10 +38,13 @@ You can configure the script placing a config file in /etc/pastafari/stats.cfg
 [DEFAULT]
 
 url_server=http://url_server_collect_data/
+group=server-group
 ```
 
 Where url_server_collect_data is the hostname of server collecting data, api_key_selected, the api key of server for accept the data, and ip_server, the ip of the server that send the data. 
 
+Group: A server can belong to group. If you have a servers in a network, you can group them with the same group name. 
+
 # Configuration for Windows 10, Windows Server 2012, etc. 
 
 Windows sucks, but you can need monitoring windows servers or desktops.
@@ -66,6 +69,7 @@ Next, you need create the config file. For example, if you have an user called "
 [DEFAULT]
 
 url_server=http://url_server_collect_data/
+group=server-group
 ```
 
 Now, you need install the python script how service. You can use a classic manager services for windows called [NSSM](https://nssm.cc/). If you use Windows 10 64 bits, you can download from [here](https://nssm.cc/ci/nssm-2.24-101-g897c7ad.zip)