Package: markdown Version: 1.0.2~b8-3 File: /usr/share/man/man1/markdown.1.gz
A proper NAME item looks like
NAME
cat - concatenate files and print on the standard output
That way
$ apropos markdown
Markdown (3) - (unknown subject)
markdown (1) - (unknown subject)
markdown (3) - (unknown subject)
could be avoided.
By the way one or two links to the same thing, not three, would be enough...

