Change subtitle to 'A new way to JavaScript' (#1603)

README.md

@@ -4,7 +4,7 @@
 | :------------------------: | :------------------------: |
 | [![][tci badge]][tci link] | [![][avy badge]][avy link] |
 
-## A secure JavaScript / TypeScript runtime built on V8
+## A new way to JavaScript.
 
 - Supports TypeScript out of the box. Uses a recent version of V8. That is, it's
   very modern JavaScript.

website/index.html

@@ -29,7 +29,7 @@
       </tr>
     </table>
 
-    <p>Deno is a secure JavaScript / TypeScript runtime built on V8
+    <p>A new way to JavaScript
 
     <p> <a href="https://github.com/denoland/deno">github.com/denoland/deno</a>