Changed subject of last sentence to be D3

Making D3 the subject of the last sentence makes it stronger and clearer.

I also moved the adverbial clause "combing..." to the beginning because it was confusing at the end.

We can now ask: "How does D3 give me the full capabilities of modern browsers without tying me to a proprietary framework," and get a clear answer: "By emphasizing web standards and combining powerful visualization components and a data-driven approach to DOM manipulation"

README.md

@@ -2,7 +2,7 @@
 
 <a href="http://d3js.org"><img src="http://d3js.org/logo.svg" align="left" hspace="10" vspace="6"></a>
 
-**D3.js** is a JavaScript library for manipulating documents based on data. **D3** helps you bring data to life using HTML, SVG, and CSS. D3’s emphasis on web standards gives you the full capabilities of modern browsers without tying yourself to a proprietary framework, while combining powerful visualization components and a data-driven approach to DOM manipulation.
+**D3.js** is a JavaScript library for manipulating documents based on data. **D3** helps you bring data to life using HTML, SVG, and CSS. By emphasizing web standards and combining powerful visualization components and a data-driven approach to DOM manipulation, **D3** gives you the full capabilities of modern browsers without tying yourself to a proprietary framework.
 
 Want to learn more? [See the wiki.](https://github.com/mbostock/d3/wiki)