README.md in inline_svg-0.3.0 vs README.md in inline_svg-0.4.0

@@ -30,13 +30,16 @@
 ## Usage
 
 ```
 inline_svg(file_name, options={})
 ```
+The `file_name` can be a full path to a file, or just the file's basename. The
+actual path of the file on disk is resolved using
+[Sprockets](://github.com/sstephenson/sprockets), which means you can pre-process
+and fingerprint your SVG files like any other Rails asset.
 
-Currently, this little helper only works in the context of a Rails app. Here's
-an example of embedding an SVG document and applying a 'class' attribute in
+Here's an example of embedding an SVG document and applying a 'class' attribute in
 HAML:
 
 ```
  !!! 5 
   %html
@@ -61,24 +64,32 @@
 }
 ```
 
 ## Options
 * `class`: set a CSS class attribute on the SVG
+* `size`: set width and height attributes on the SVG
+  * Supplied as "{Width} * {Height}" or "{Number}", so "30px*45px" becomes `width="30px"`
+    and `height="45px"`, and "50%" becomes `width="50%"` and `height="50%"`
 * `title`: add a \<title\> node inside the top level of the SVG document
 * `desc`: add a \<desc\> node inside the top level of the SVG document
 * `nocomment`: remove comment tags (and other unsafe/unknown tags) from svg
   (uses the [Loofah](https://github.com/flavorjones/loofah) gem)
 
 Example:
 
 ```
-inline_svg("some-document.svg", class: 'some-class', title: 'Some Title', desc:
+inline_svg("some-document.svg", class: 'some-class', size: '30% * 20%', title: 'Some Title', desc:
 'Some interesting description', nocomment: true)
 ```
 
 ## Contributing
 
 1. Fork it ( [http://github.com/jamesmartin/inline_svg/fork](http://github.com/jamesmartin/inline_svg/fork) )
 2. Create your feature branch (`git checkout -b my-new-feature`)
 3. Commit your changes (`git commit -am 'Add some feature'`)
 4. Push to the branch (`git push origin my-new-feature`)
 5. Create new Pull Request
+
+Please write tests for anything you change, add or fix.
+There is a [basic Rails
+app](http://github.com/jamesmartin/inline_svg_test_app) that demonstrates the
+gem's functionality in use.