Spell check and tweaks. [doc]

Author: trans

HISTORY.rdoc

@@ -3,18 +3,20 @@
 == 2.0.0 / 2011-10-29
 
 This is a complete rewrite to simplify the design and use more
-of Ruby's internal methods. Overall performance should be markedly
-improved. Note that the interal array that stores the queue is now
-in reverse order from the previous version. If using #to_a be aware
-that the priority order is reversed. This release also swithes
-the library to distribution under the BSD-2-Clause license.
+of Ruby's internal methods.  Overall performance should be markedly
+improved. A few method names have changed to be more consistent with
+Ruby's other data structure. Note that the internal heap is now in reverse
+order from the previous version. If using #to_a be aware that the priority
+order will be reversed. This release also switches the library to 
+distribution under the BSD-2-Clause license.
 
 Changes:
 
 * Rewrite library.
 * Modernize build configuration.
 * Switch to BSD-2-Clause license.
 
+
 == 1.0.0 / 2009-07-05
 
 This is the initial standalone release of PQueue, spun-off from the

README.rdoc

@@ -17,14 +17,14 @@ comparison block given at instantiation time. Also, retrieving an element
 from the queue will always return the one with the highest priority
 (see #pop and #top).
 
-The default is to compare the elements in repect to their #<=> method.
+The default is to compare the elements in respect to their #<=> method.
 For example, Numeric elements with higher values will have higher
 priorities.
 
 This library is  a rewrite of the original PQueue.rb by K. Kodama and
 Heap.rb by Ronald Butler. The two libraries were later merged
 and generally improved by Olivier Renaud. Then the whole library 
-rewritten by Trans using the orginal as a functional reference.
+rewritten by Trans using the original as a functional reference.
 
 
 == SYNOPSIS
@@ -36,7 +36,7 @@ rewritten by Trans using the orginal as a functional reference.
   pq.pop  #=> 3
 
 
-== ACKNOWLEDGEMENT
+== ACKNOWLEDGMENTS
 
 Although the library has been completely rewritten since, we still would
 like to acknowledge the efforts of the original PQueue authors and