update readme
diff --git a/readme.md b/readme.md
index 5245ac4..5cc158c 100644
--- a/readme.md
+++ b/readme.md
@@ -93,7 +93,7 @@
### White Space
-#### Whitespace Preservation (default)
+#### Whitespace Preservation (default, PRESERVE_WHITESPACE)
Microsoft has an excellent article on white space: http://msdn.microsoft.com/en-us/library/ms256097.aspx
@@ -125,7 +125,7 @@
<document><data>1</data><data>2</data><data>3</data></document>
-#### Whitespace Collapse
+#### Whitespace Collapse (COLLAPSE_WHITESPACE)
For some applications, it is preferable to collapse whitespace. Collapsing
whitespace gives you "HTML-like" behavior, which is sometimes more suitable
@@ -143,7 +143,15 @@
Note that (currently) there is a performance impact for using COLLAPSE_WHITESPACE.
It essentially causes the XML to be parsed twice.
-#### Error Reporting
+#### Pedantic Whitespace (PEDANTIC_WHITESPACE)
+
+For applications that need to know about text nodes that are composed entirely of
+whitespace, PEDANTIC_WHITESPACE is available. PEDANTIC_WHITESPACE maintains all the
+whilespace between elements.
+
+PEDANTIC_WHITESPACE is a new mode and not as tested as the other whitespace modes.
+
+### Error Reporting
TinyXML-2 reports the line number of any errors in an XML document that
cannot be parsed correctly. In addition, all nodes (elements, declarations,
