Doc: virtio-blk: add description of boot device option
Add the description of option 'b' to indicate the boot device including
the bootable image.
@@ -63,8 +63,11 @@ Usage:
The device model configuration command syntax for virtio-blk is::
- -s <slot>,virtio-blk,<filepath>[,options]
+ -s <slot>,virtio-blk,[,b,]<filepath>[,options]
+- ``b``: when using ``vsbl`` as the virtual bootloader, use this
+ immediately after ``virtio-blk`` to specify it as a bootable
+ device and the bootable image location.
- ``filepath`` is the path of a file or disk partition
- ``options`` include:
