tweak comments. fix copy to self case.
diff --git a/tinyxml2.h b/tinyxml2.h
index f7fc21f..f307059 100755
--- a/tinyxml2.h
+++ b/tinyxml2.h
@@ -866,16 +866,17 @@
     virtual XMLNode* ShallowClone( XMLDocument* document ) const = 0;

 

 	/**

-		Make a copy of this node and all of the children

-		of this node.

+		Make a copy of this node and all its children.

 

 		If the 'document' is null, then the nodes will

-		be allocated in the current document. If specified,

-		memory will e allocated is the specified document.

+		be allocated in the current document. If document 

+        is specified, the memory will be allocated is the 

+        specified XMLDocument.

 

 		NOTE: This is probably not the correct tool to 

 		copy a document, since XMLDocuments can have multiple

-		top level XMLNodes. You probably want XMLDocument::DeepCopy()

+		top level XMLNodes. You probably want to use

+        XMLDocument::DeepCopy()

 	*/

 	XMLNode* DeepClone( XMLDocument* document ) const;

 

@@ -1825,8 +1826,7 @@
 		The target will be completely cleared before the copy.

 		If you want to copy a sub-tree, see XMLNode::DeepClone().

 

-		NOTE: that the 'target' must be non-null and not

-		the source document.

+		NOTE: that the 'target' must be non-null.

 	*/

 	void DeepCopy(XMLDocument* target);