doc: mkimage: Use subsection macro

The options are divided up into several subsections. Use the appropriate
macro. While we're at it, rename the headings to better reflect the
contents of their sections.

Signed-off-by: Sean Anderson <seanga2@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>

diff --git a/doc/mkimage.1 b/doc/mkimage.1
index 9945251..025ebc0 100644 (file)
--- a/doc/mkimage.1
+++ b/doc/mkimage.1
@@ -52,7 +52,7 @@ supports verified boot.
 .
 .SH OPTIONS
 .
-.B List image information:
+.SS General options
 .
 .TP
 .BI \-l " uimage-file-name"
@@ -68,8 +68,7 @@ Without this option image type is autodetected.
 .B \-q
 Quiet. Don't print the image header on successful verification.
 .
-.P
-.B Create old legacy image:
+.SS General image-creation options
 .
 .TP
 .BI \-A " architecture"
@@ -152,8 +151,7 @@ just the header, everything but the image data, or nothing at all.
 .B \-v
 Verbose. Print file names as they are added to the image.
 .
-.P
-.B Create FIT image:
+.SS Options for creating FIT images
 .
 .TP
 .BI \-b " device-tree-file"