added license and copyright

README.md

@@ -550,4 +550,13 @@ Default Options
     createErrorContainer: null,                           //function to create the error container (can also be set via $.ketchup.createErrorContainer(fn))
     showErrorContainer  : null,                           //function to show the error container (can also be set via $.ketchup.showErrorContainer(fn))
     hideErrorContainer  : null,                           //function to hide the error container (can also be set via $.ketchup.hideErrorContainer(fn))
-    addErrorMessages    : null                            //function to add error messages to the error container (can also be set via $.ketchup.addErrorMessages(fn))
+    addErrorMessages    : null                            //function to add error messages to the error container (can also be set via $.ketchup.addErrorMessages(fn))
+
+
+License and Copyright
+---------------------
+
+The jQuery Ketchup Plugin is dual licensed under the [GPL](http://www.gnu.org/licenses/gpl.html
+) and [MIT](http://www.opensource.org/licenses/mit-license.php) licenses.
+
+(c) 2011 Sebastian Senf - [http://mustardamus.com](http://mustardamus.com) - [http://usejquery.com](http://usejquery.com) - [@mustardamus](http://twitter.com/mustardamus)

docs/index.html

@@ -578,4 +578,10 @@ <h2>Default Options</h2>
 hideErrorContainer  : null,                           //function to hide the error container (can also be set via $.ketchup.hideErrorContainer(fn))
 addErrorMessages    : null                            //function to add error messages to the error container (can also be set via $.ketchup.addErrorMessages(fn))
 </code></pre>
+
+<h2>License and Copyright</h2>
+
+<p>The jQuery Ketchup Plugin is dual licensed under the <a href="http://www.gnu.org/licenses/gpl.html">GPL</a> and <a href="http://www.opensource.org/licenses/mit-license.php">MIT</a> licenses.</p>
+
+<p>(c) 2011 Sebastian Senf - <a href="http://mustardamus.com">http://mustardamus.com</a> - <a href="http://usejquery.com">http://usejquery.com</a> - <a href="http://twitter.com/mustardamus">@mustardamus</a></p>
 </div></body></html>

jquery.ketchup.js

@@ -1,3 +1,23 @@
+/*
+  jQuery Ketchup Plugin - Tasty Form Validation
+  ---------------------------------------------
+  
+  Version 0.3 - 06. Jan 2011
+  Version 0.1 - 12. Feb 2010
+  
+  Copyright (c) 2011 by Sebastian Senf:
+    http://mustardamus.com/
+    http://usejquery.com/
+    http://twitter.com/mustardamus
+
+  Dual licensed under the MIT and GPL licenses:
+    http://www.opensource.org/licenses/mit-license.php
+    http://www.gnu.org/licenses/gpl.html
+
+  Demo: http://demos.usejquery.com/ketchup-plugin/
+  Repo: http://github.com/mustardamus/ketchup-plugin
+*/
+
 (function($) {
   $.ketchup = {
     defaults: {