Some directions for potential contributors

Author: jzaefferer

pages/contribute.md

@@ -0,0 +1,11 @@
+<script>{
+  "title": "Contribute"
+}</script>
+
+There are several ways for you to contribute to this plugin:
+
+* Help [with the code](https://github.com/jzaefferer/jquery-validation/). Fix bugs, propose features, translate messages and methods...
+* Help [with the site content](https://github.com/jzaefferer/validation-content). Improve API documentation, examples, references...
+* HElp [with the site theme](https://github.com/jzaefferer/validation-theme). This is a WordPress theme that still needs a lot of improvements.
+
+For pretty much all contributions, check out [jQuery's contribute site](http://contribute.jquery.org/) - the style guides et al apply to this project as well.