Update install-xsens.md

Author: jgvictores

install-xsens.md

@@ -19,13 +19,13 @@ yarpdev --list | grep xsensmtx
 
 # Set rules to avoid needing sudo
 
-In order to allow a non-sudoer to read data from the sensors connected via USB port, you need to add the following rule for udev system:
+In order to allow a non-sudoer to read data from the sensors connected via USB port, you need to add a rule for udev system. 
+
+Similar to the advice from [debian udev documentation](https://wiki.debian.org/udev), create `/etc/udev/rules.d/80-persistent-local-usb.rules` with the following contents:
 ```
 KERNEL == "ttyUSB0", MODE = "0777"
 ```
 
-The advice from [debian udev documentation](https://wiki.debian.org/udev) is to define rules in a file named `z21\_persistent-local.rules`. If there is no such file, it is recommended to create one. Taking this in consideration, the file
-name and path should look like this: `/etc/udev/rules.d/z21\_persistent-local.rules`
 
 # View XSENS data