Fix typos in Documentation/: 'H'-'M'

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

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/lockdep-design.txt b/Documentation/lockdep-design.txt
index 7f2bb8e..2a76a4a 100644
--- a/Documentation/lockdep-design.txt
+++ b/Documentation/lockdep-design.txt
@@ -133,7 +133,7 @@
 (defined by the properties of the hierarchy), and the kernel grabs the
 locks in this fixed order on each of the objects.
 
-An example of such an object hieararchy that results in "nested locking"
+An example of such an object hierarchy that results in "nested locking"
 is that of a "whole disk" block-dev object and a "partition" block-dev
 object; the partition is "part of" the whole device and as long as one
 always takes the whole disk lock as a higher lock than the partition
@@ -162,7 +162,7 @@
 separate (sub)class for the purposes of validation.
 
 Note: When changing code to use the _nested() primitives, be careful and
-check really thoroughly that the hiearchy is correctly mapped; otherwise
+check really thoroughly that the hierarchy is correctly mapped; otherwise
 you can get false positives or false negatives.
 
 Proof of 100% correctness: