Documentation: create new scheduler/ subdirectory

The top-level Documentation/ directory is unmanageably large, so we
should take any obvious opportunities to move stuff into subdirectories.
These sched-*.txt files seem an obvious easy case.

Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
Cc: Ingo Molnar <mingo@elte.hu>
Acked-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/Documentation/00-INDEX b/Documentation/00-INDEX
index 4d4dde4..d273b55 100644
--- a/Documentation/00-INDEX
+++ b/Documentation/00-INDEX
@@ -332,20 +332,8 @@
 	- notes on how to use the Real Time Clock (aka CMOS clock) driver.
 s390/
 	- directory with info on using Linux on the IBM S390.
-sched-arch.txt
-	- CPU Scheduler implementation hints for architecture specific code.
-sched-coding.txt
-	- reference for various scheduler-related methods in the O(1) scheduler.
-sched-design.txt
-	- goals, design and implementation of the Linux O(1) scheduler.
-sched-design-CFS.txt
-	- goals, design and implementation of the Complete Fair Scheduler.
-sched-domains.txt
-	- information on scheduling domains.
-sched-nice-design.txt
-	- How and why the scheduler's nice levels are implemented.
-sched-stats.txt
-	- information on schedstats (Linux Scheduler Statistics).
+scheduler/
+	- directory with info on the scheduler.
 scsi/
 	- directory with info on Linux scsi support.
 serial/