docs/67821: Fix some wording, errors and update.

[Brad Davis]

>Number:         67821
>Category:       docs
>Synopsis:       Fix some wording, errors and update.
>Confidential:   no
>Severity:       non-critical
>Priority:       low
>Responsible:    freebsd-doc
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          update
>Submitter-Id:   current-users
>Arrival-Date:   Fri Jun 11 08:30:25 GMT 2004
>Closed-Date:
>Last-Modified:
>Originator:     Brad Davis
>Release:        FreeBSD 4.10-STABLE i386
>Organization:
>Environment:
System: FreeBSD mccaffrey.house.so14k.com 4.10-STABLE FreeBSD 4.10-STABLE #0: Fri May 28 08:02:41 MDT 2004 root at mccaffrey.house.so14k.com:/usr/obj/usr/src/sys/MCCAFFREY i386
>Description:
	1. 4-to-6 -> 6-to-4
	2. Remove reference to A6 Records
	3. Reference more IPv6 software (DJBDNS and Konq)
	4. Fix wording about abbreviating with ::
	5. Fix wording about autoconfiguration WRT MAC addresses
	6. Add link to RFC3068
>How-To-Repeat:
>Fix:
	Apply the diff at http://freebsd.so14k.com/ipv6.1.patch
	MD5 (ipv6.1.patch) = c8ecf099a06f3d673b80c238e1c00bc8
>Release-Note:
>Audit-Trail:
>Unformatted: