[PATCH] docs: iio: backend: use literal block for commands

[Randy Dunlap <rdunlap@infradead.org>]

Use literal blocks for 'cat' and 'echo' commands to separate them from
the surrounding text. Otherwise the lines run together, without any
clear break before or after the commands.

Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
---
Cc: Nuno Sa <nuno.sa@analog.com>
Cc: Olivier Moysan <olivier.moysan@foss.st.com>
Cc: Jonathan Cameron <jic23@kernel.org>
Cc: David Lechner <dlechner@baylibre.com>
Cc: Andy Shevchenko <andy@kernel.org>
Cc: linux-iio@vger.kernel.org
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Shuah Khan <skhan@linuxfoundation.org>
Cc: linux-doc@vger.kernel.org

 Documentation/ABI/testing/debugfs-iio-backend |   16 ++++++++--------
 1 file changed, 8 insertions(+), 8 deletions(-)

--- linux-next-20260914.orig/Documentation/ABI/testing/debugfs-iio-backend
+++ linux-next-20260914/Documentation/ABI/testing/debugfs-iio-backend
@@ -8,13 +8,13 @@ What:		/sys/kernel/debug/iio/iio:deviceX
 KernelVersion:	6.11
 Contact:	linux-iio@vger.kernel.org
 Description:
-		Directly access the registers of backend Y. Typical usage is:
+		Directly access the registers of backend Y. Typical usage is::
 
-		Reading address 0x50
-		echo 0x50 > direct_reg_access
-		cat direct_reg_access
+		  Reading address 0x50
+		  echo 0x50 > direct_reg_access
+		  cat direct_reg_access
 
-		Writing address 0x50
-		echo 0x50 0x3 > direct_reg_access
-		//readback address 0x50
-		cat direct_reg_access
+		  Writing address 0x50
+		  echo 0x50 0x3 > direct_reg_access
+		  //readback address 0x50
+		  cat direct_reg_access