trivial: Miscellaneous documentation typo fixes

Fix various typos in documentation txts.

Signed-off-by: Matt LaPlante <kernel1@cyberdogtech.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
diff --git a/Documentation/block/deadline-iosched.txt b/Documentation/block/deadline-iosched.txt
index 7257676..2d82c80 100644
--- a/Documentation/block/deadline-iosched.txt
+++ b/Documentation/block/deadline-iosched.txt
@@ -58,7 +58,7 @@
 front_merges	(bool)
 ------------
 
-Sometimes it happens that a request enters the io scheduler that is contigious
+Sometimes it happens that a request enters the io scheduler that is contiguous
 with a request that is already on the queue. Either it fits in the back of that
 request, or it fits at the front. That is called either a back merge candidate
 or a front merge candidate. Due to the way files are typically laid out,