Replace "Web platform technologies" with "Web technologies" (#276)

Nobody says this, it's either "Web technologies" or "Web Platform",
and in this context "Web Technologies" is probably better.

Author: mariospr

index.html

@@ -358,7 +358,7 @@
 <span></span>
 <div>
 <h1>
-Create simple and performant systems based on <strong>Web platform technologies.</strong>
+Create simple and performant systems based on <strong>Web technologies.</strong>
 </h1>
 <p>
 An Open Source Web engine for Linux-based embedded devices designed with flexibility and hardware acceleration in mind, leveraging common 3D graphics APIs for best performance.