docs: Reflect that it's needed on CentOS/RHEL7
@@ -52,7 +52,7 @@ sudo gpasswd -a ${USER} libvirt
newgrp libvirt
```
-You might also need to change the libvirt connection string to be able to see all libvirt information:
+On CentOS/RHEL 7 you might also need to change the libvirt connection string to be able to see all libvirt information:
```
export LIBVIRT_DEFAULT_URI=qemu:///system
