docs: Render binary names as monospaced text

Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20211118192744.64325-1-philmd@redhat.com>
Reviewed-by: Darren Kenny <darren.kenny@oracle.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>

docs/system/arm/orangepi.rst

@@ -128,7 +128,7 @@ Alternatively, you can also choose to build you own image with buildroot
 using the orangepi_pc_defconfig. Also see https://buildroot.org for more information.
 
 When using an image as an SD card, it must be resized to a power of two. This can be
-done with the qemu-img command. It is recommended to only increase the image size
+done with the ``qemu-img`` command. It is recommended to only increase the image size
 instead of shrinking it to a power of two, to avoid loss of data. For example,
 to prepare a downloaded Armbian image, first extract it and then increase
 its size to one gigabyte as follows:

docs/system/images.rst

@@ -20,7 +20,7 @@ where myimage.img is the disk image filename and mysize is its size in
 kilobytes. You can add an ``M`` suffix to give the size in megabytes and
 a ``G`` suffix for gigabytes.
 
-See the qemu-img invocation documentation for more information.
+See the ``qemu-img`` invocation documentation for more information.
 
 .. _disk_005fimages_005fsnapshot_005fmode:
 

docs/system/qemu-block-drivers.rst.inc

@@ -511,13 +511,13 @@ of an inet socket:
 
   |qemu_system| linux.img -hdb nbd+unix://?socket=/tmp/my_socket
 
-In this case, the block device must be exported using qemu-nbd:
+In this case, the block device must be exported using ``qemu-nbd``:
 
 .. parsed-literal::
 
   qemu-nbd --socket=/tmp/my_socket my_disk.qcow2
 
-The use of qemu-nbd allows sharing of a disk between several guests:
+The use of ``qemu-nbd`` allows sharing of a disk between several guests:
 
 .. parsed-literal::
 
@@ -530,7 +530,7 @@ and then you can use it with two guests:
   |qemu_system| linux1.img -hdb nbd+unix://?socket=/tmp/my_socket
   |qemu_system| linux2.img -hdb nbd+unix://?socket=/tmp/my_socket
 
-If the nbd-server uses named exports (supported since NBD 2.9.18, or with QEMU's
+If the ``nbd-server`` uses named exports (supported since NBD 2.9.18, or with QEMU's
 own embedded NBD server), you must specify an export name in the URI:
 
 .. parsed-literal::

docs/system/tls.rst

@@ -311,7 +311,7 @@ containing one or more usernames and random keys::
    mkdir -m 0700 /tmp/keys
    psktool -u rich -p /tmp/keys/keys.psk
 
-TLS-enabled servers such as qemu-nbd can use this directory like so::
+TLS-enabled servers such as ``qemu-nbd`` can use this directory like so::
 
    qemu-nbd \
      -t -x / \