README: change guidance and demphasise v1

* Recommend that normalize.css is used as library code (i.e., not
  modified).

* Add a note that v1 is no longer actively developed.

README.md

@@ -1,13 +1,13 @@
 # normalize.css v2
 
 Normalize.css is a customisable CSS file that makes browsers render all
-elements more consistently and in line with modern standards. We researched the
-differences between default browser styles in order to precisely target only
-the styles that need normalizing.
+elements more consistently and in line with modern standards.
 
-[Check out the demo](http://necolas.github.io/normalize.css/latest/test.html)
+The project relies on researching the differences between default browser
+styles in order to precisely target only the styles that need or benefit from
+normalizing.
 
-[Legacy browser support is available in v1](https://github.com/necolas/normalize.css/tree/v1)
+[Check out the demo](http://necolas.github.io/normalize.css/latest/test.html)
 
 ## Install
 
@@ -25,11 +25,10 @@ Install with [Bower](http://bower.io/): `bower install --save normalize-css`
 
 ## How to use it
 
-Normalize.css is intended to be used as an alternative to CSS resets.
+No other styles should come before Normalize.css.
 
-It's suggested that you read the `normalize.css` file and consider customising
-it to meet your needs. Alternatively, include the file in your project and
-override the defaults later in your CSS.
+It is recommended that you include the `normalize.css` file as untouched
+library code.
 
 ## Browser support
 
@@ -39,7 +38,11 @@ override the defaults later in your CSS.
 * Opera 12+
 * Internet Explorer 8+
 
-## Contribute
+[Normalize.css v1 provides legacy browser
+support](https://github.com/necolas/normalize.css/tree/v1) (IE 6+, Safari 4+),
+but is no longer actively developed.
+
+## Contributing
 
 Please read the CONTRIBUTING.md