Fix typos in Documentation/: 'Q'-'R'

This patch fixes typos in various Documentation txts. The patch addresses
some words starting with the letters 'Q'-'R'.

Signed-off-by: Matt LaPlante <kernel1@cyberdogtech.com>
Acked-by: Randy Dunlap <rdunlap@xenotime.net>
Signed-off-by: Adrian Bunk <bunk@stusta.de>
diff --git a/Documentation/ide.txt b/Documentation/ide.txt
index 29866fb..0bf38ba 100644
--- a/Documentation/ide.txt
+++ b/Documentation/ide.txt
@@ -281,7 +281,7 @@
 
  "idex=serialize"	: do not overlap operations on idex. Please note
 			  that you will have to specify this option for
-			  both the respecitve primary and secondary channel
+			  both the respective primary and secondary channel
 			  to take effect.
 
  "idex=four"		: four drives on idex and ide(x^1) share same ports