documentation:  Move power-related files to Documentation/power/

Move 00-INDEX entries to power/00-INDEX (and add entry for
pm_qos_interface.txt).

Update references to moved filenames.

Fix some trailing whitespace.

Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Len Brown <len.brown@intel.com>
diff --git a/Documentation/power/00-INDEX b/Documentation/power/00-INDEX
index 8db4e41..a55d7f1 100644
--- a/Documentation/power/00-INDEX
+++ b/Documentation/power/00-INDEX
@@ -14,6 +14,12 @@
 	- Registering suspend notifiers in device drivers
 pci.txt
 	- How the PCI Subsystem Does Power Management
+pm.txt
+	- info on Linux power management support.
+pm_qos_interface.txt
+	- info on Linux PM Quality of Service interface
+power_supply_class.txt
+	- Tells userspace about battery, UPS, AC or DC power supply properties
 s2ram.txt
 	- How to get suspend to ram working (and debug it when it isn't)
 states.txt