[PATCH 1/3] Documentation: hw-vuln: Wrap mitigate_smt_rsb example in literal code block

[Bagas Sanjaya <bagasdotme@gmail.com>]

Stephen Rothwell reported htmldocs warning when making htmldocs from
Linus's Tree:

Documentation/admin-guide/hw-vuln/cross-thread-rsb.rst:92: ERROR: Unexpected indentation.

Fix the warning by formatting example of mitigate_smt_rsb module parameter
as literal code block.

Link: https://lore.kernel.org/linux-next/20230215144117.369ffb5f@canb.auug.org.au/
Fixes: 493a2c2d23ca91 ("Documentation/hw-vuln: Add documentation for Cross-Thread Return Predictions")
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Bagas Sanjaya <bagasdotme@gmail.com>
---
 Documentation/admin-guide/hw-vuln/cross-thread-rsb.rst | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/Documentation/admin-guide/hw-vuln/cross-thread-rsb.rst b/Documentation/admin-guide/hw-vuln/cross-thread-rsb.rst
index ec6e9f5bcf9e89..3593d30ccfde12 100644
--- a/Documentation/admin-guide/hw-vuln/cross-thread-rsb.rst
+++ b/Documentation/admin-guide/hw-vuln/cross-thread-rsb.rst
@@ -88,5 +88,6 @@ capability to override those interceptions, but since this is not common, the
 mitigation that covers this path is not enabled by default.
 
 The mitigation for the KVM_CAP_X86_DISABLE_EXITS capability can be turned on
-using the boolean module parameter mitigate_smt_rsb, e.g.:
+using the boolean module parameter mitigate_smt_rsb, e.g.::
+
         kvm.mitigate_smt_rsb=1
-- 
An old man doll... just what I always wanted! - Clara