Intro editorial (#104)

* Nuance language about royalty free, for #100
* Make language not about history, for #100

index.html

@@ -69,16 +69,16 @@
 
 The web is made up of a number of technologies and technical standards.
 HTML, CSS and JavaScript are often thought of as the web's core set of technologies
-but there are a raft of other technologies, standards,
+but there are many other technologies, standards,
 languages and APIs that come together to form the "web platform."
-One of the web platform's differentiators has always been a strong ethical framework;
+We strive to maintain a strong ethical framework as a differentiator for the web platform,
 for example an emphasis on
 [internationalization](https://www.w3.org/International/),
 [accessibility](https://www.w3.org/WAI/),
 [privacy](https://www.w3.org/Privacy/), and
 [security](https://www.w3.org/Security/).
-Web technologies are also offered
-[royalty free](https://www.w3.org/Consortium/Patent-Policy/)
+Web technologies are also released for use under a
+[royalty free license](https://www.w3.org/Consortium/Patent-Policy/)
 to enable open source implementation.
 These are often cited as some of the strengths of the web.
 Despite this, in the 30 years since development of the web began,