updated readme

README

@@ -1,4 +1,5 @@
 <h2>Usage:</h2>
+=====================
 
 Installation:
 

README.md.txt

@@ -0,0 +1,29 @@
+<h2>Usage:</h2>
+=================
+
+Installation:
+
+npm install sanitizer
+
+
+Require:
+
+var sanitizer = require('sanitizer');
+
+
+Use:
+
+sanitizer.escape('your dirty string'); // Escapes HTML special characters in attribute values as HTML entities
+
+var yourParser = sanitizer.makeSaxParser(yourHandler); // Given a SAX-like event handler, produce a function that feeds those events and a parameter to the event handler.
+
+sanitizer.normalizeRCData('your dirty string'); // Escape entities in RCDATA that can be escaped without changing the meaning.
+
+sanitizer.sanitize('your dirty string'); // Strips unsafe tags and attributes from html.
+
+exports.unescapeEntities('your string'); // The plain text of a chunk of HTML CDATA which possibly containing.
+
+
+More information:
+
+http://code.google.com/p/google-caja/source/browse/trunk/src/com/google/caja/plugin/html-sanitizer.js