Dead links in platforms.md

[atouchet]

serialport-rs/doc/platforms.md

Lines 27 to 28 in d60df34

	* http://netbsd.gw.com/cgi-bin/man-cgi?tty+4.i386+NetBSD-8.0
	* http://netbsd.gw.com/cgi-bin/man-cgi?com+4.i386+NetBSD-8.0

[sirhcel]

Thank you very much for pointing this out! I have no experience with NetBSD, but since you are here: are the following links the man pages you were looking for:

• https://man.netbsd.org/NetBSD-8.0/i386/tty.4
• https://man.netbsd.org/NetBSD-8.0/i386/com.4

Do you see anything against pointing to the man pages for the current NetBSD release and without a specific archtiecture? Like:

• https://man.netbsd.org/tty.4
• https://man.netbsd.org/com.4

[eldruin]

@atouchet would you mind opening a PR fixing the links?

[atouchet]

Sure, I opened a PR here: #86