include: Add xml DOMDocument60 definition.
diff --git a/.gitignore b/.gitignore
index a007dcc..d009da6 100644
--- a/.gitignore
+++ b/.gitignore
@@ -189,6 +189,7 @@
 include/mstask.h
 include/msxml.h
 include/msxml2.h
+include/msxml6.h
 include/netcon.h
 include/netfw.h
 include/oaidl.h