od(1): Add EXAMPLES section

[fernape]

Summary

• Add two small examples showing the use of -a, -c, -j and -N
• While here, remove obsolete .Tn reported by mandoc(1)

Test Plan

• mandoc -Tlint clean
• igor clean
• aspell happy
• man ./od.1 renders the page properly

[0mp]

LGTM! Please commit!

Also, when it comes to escaping \ in manual pages, I've also seen people use \e instead of \\. Actually, as I'm reading https://www.man7.org/linux/man-pages/man7/groff.7.html now, it seems \e is more correct. I just thought you may want to know ;)

[fernape]

In D25372#559761, @0mp wrote:

LGTM! Please commit!

Also, when it comes to escaping \ in manual pages, I've also seen people use \e instead of \\. Actually, as I'm reading https://www.man7.org/linux/man-pages/man7/groff.7.html now, it seems \e is more correct. I just thought you may want to know ;)

Thanks!

[fernape]

Committed, with \e.

Thanks for reviewing this!