Merge pull request flutter#11 from dart-lang/sethladd-patch-2

Just making things extra clear :)

Author: John Messerly

README.md

@@ -8,6 +8,8 @@ Dart you can use it safely from a script or server side app.
 Eventually the parse tree API will be compatible with [dart:html][d_html], so
 the same code will work on the client and the server.
 
+(Formally known as _html5lib_.)
+
 Installation
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