updated readme

README.md

@@ -1,13 +1,20 @@
 # vrpn_client_ros
-This for aims at porting the original code from the kinetic-devel branch to ROS2.
+This fork aims at porting the original code from the kinetic-devel branch to ROS2.
 
 ## Requirements
 
-The code requires VRPN to work. I fullfilled this requirement by installing the proper ROS1 package:
+The code requires VRPN to work. Unfortunately, currently the package is only
+available in melodic and older ROS releases and can be installed with:
 ```
     apt-get install ros-melodic-vrpn
 ```
 
+If you want to stick to ROS2 or do not have access to melodic packages you can
+clone the following repository to the src folder of your ros_overlay_ws:
+```
+git clone --single-branch --branch debian/melodic/vrpn [email protected]:ros-drivers-gbp/vrpn-release.git
+```
+
 ## What works?
 
 I only use pose in my project, so I did not port anything else (TF, twist, accel). Also multiple sensors per tracker are not ported.