Fix typo in commands to enable nested KVM with kvm-amd

Change-Id: Ie3c6df2409385d9c6bbc50b3b1f8b20689478466
diff --git a/doc/source/guides/devstack-with-nested-kvm.rst b/doc/source/guides/devstack-with-nested-kvm.rst
index 85a5656..3732f06 100644
--- a/doc/source/guides/devstack-with-nested-kvm.rst
+++ b/doc/source/guides/devstack-with-nested-kvm.rst
@@ -73,7 +73,7 @@
 ::
 
     sudo rmmod kvm-amd
-    sudo sh -c "echo 'options amd nested=1' >> /etc/modprobe.d/dist.conf"
+    sudo sh -c "echo 'options kvm-amd nested=1' >> /etc/modprobe.d/dist.conf"
     sudo modprobe kvm-amd
 
 Ensure the Nested KVM Kernel module parameter for AMD is enabled on the