doc/mkimage.1: Fix -D/-f options formatting
Signed-off-by: Horst Kronstorfer <hkronsto@frequentis.com>
diff --git a/doc/mkimage.1 b/doc/mkimage.1
index 800aed4..39652c8 100644
--- a/doc/mkimage.1
+++ b/doc/mkimage.1
@@ -82,12 +82,12 @@
.B Create FIT image:
.TP
-.BI "\-D "dtc option"
+.BI "\-D [" "dtc options" "]"
Provide special options to the device tree compiler that is used to
create the image.
.TP
-.BI "\-f "fit-image.its"
+.BI "\-f [" "image tree source file" "]"
Image tree source file that describes the structure and contents of the
FIT image.