[PATCH] Documentation update for relay interface

Here's updated documentation for the relay interface, rewritten to match
the relayfs->relay changes.  It also moves relayfs.txt to relay.txt in the
process.

It includes the changes to relayfs.txt previously posted by Randy Dunlap,
thanks for those.

The relay-apps examples have also been updated to match, and can be found
on the sourceforge relayfs website.
Signed-off-by: NTom Zanussi <zanussi@us.ibm.com>
Cc: "Randy.Dunlap" <rdunlap@xenotime.net>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>

Documentation/filesystems/00-INDEX

@@ -62,8 +62,8 @@ ramfs-rootfs-initramfs.txt
 	- info on the 'in memory' filesystems ramfs, rootfs and initramfs.
 reiser4.txt
 	- info on the Reiser4 filesystem based on dancing tree algorithms.
-relayfs.txt
-	- info on relayfs, for efficient streaming from kernel to user space.
+relay.txt
+	- info on relay, for efficient streaming from kernel to user space.
 romfs.txt
 	- description of the ROMFS filesystem.
 smbfs.txt