Add documentation how to switch to KVM

morph/grid/local/README.rst

@@ -33,6 +33,14 @@ Use the local development environment
 
     vagrant up --provider=libvirt
 
+   Optionally, to switch from QEMU to KVM virtualization, edit the virtual machine definition of all the machines and replace the "qemu" on the first line with "kvm":
+
+    sudo virsh list
+    sudo virsh edit <machine id> (once for every machine)
+    vagrant halt
+    vagrant up
+
+
 4. Then, add the Vagrant SSH configuration to your user's ``~/.ssh/config`` file::
 
     install -d ~/.ssh ; vagrant ssh-config >> ~/.ssh/config