README.md in middleman-protect-emails-0.2.0 vs README.md in middleman-protect-emails-0.3.0

@@ -26,10 +26,26 @@
 
 ```ruby
 activate :protect_emails
 ```
 
-And that's it! This will now protect all `mailto` links in your Middleman project. 
+And that's it! This will now protect all `mailto` links in your Middleman project.
+
+### How it Works
+
+If the middleware detects a `mailto` link on your page, it will automatically replace the link with an encrypted hash and insert a small script at the end of the page for the browser to decode it on page load. For example, if the following code was on one of your pages:
+
+```html
+<a href='mailto:[e-mail]'>Link</a>
+```
+
+It would automatically be replaced with:
+
+```html
+<a href='#[e-mail]'>Link</a>
+```
+
+This extension also encrypts link parameters (ex. `mailto:[e-mail]?subject=Some%20Subject`).
 
 ## Contributing
 
 1. Fork it
 2. Create your feature branch (`git checkout -b my-new-feature`)