Documentation: RCU: Wrap kvm-remote.sh rerun snippet in literal code block

Unlike other kvm*.sh snippets in RCU torture test documentation,
kvm-remote.sh rerun snippet isn't formatted as literal code block,
causing it to be definition list instead in htmldocs output.

Wrap it like the rest.

Fixes: 0c208a793022 ("doc: Update torture.rst")
Signed-off-by: Bagas Sanjaya <bagasdotme@gmail.com>
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
Reviewed-by: Randy Dunlap <rdunlap@infradead.org>

Documentation/RCU/torture.rst

diff --git a/Documentation/RCU/torture.rst b/Documentation/RCU/torture.rst
index 4b1f99c..cc57d01 100644
--- a/Documentation/RCU/torture.rst
+++ b/Documentation/RCU/torture.rst
@@ -364,7 +364,7 @@
 The kvm.sh ``--dryrun scenarios`` argument is useful for working out
 how many scenarios may be run in one batch across a group of systems.
 
-You can also re-run a previous remote run in a manner similar to kvm.sh:
+You can also re-run a previous remote run in a manner similar to kvm.sh::
 
 	kvm-remote.sh "system0 system1 system2 system3 system4 system5" \
 		tools/testing/selftests/rcutorture/res/2022.11.03-11.26.28-remote \