Per P0 reqs add launch pts + make download obvious. Also misc cpy edits.

native_client_sdk/src/doc/_static/css/nacl.css

 /* Copyright (c) 2014 The Chromium Authors. All rights reserved.
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file. */
 
 /* GENERAL */
 .inline-toc ul, .inline-toc ol {list-style-type: none;}
 .small-gap                     {margin-top: 0.5em;}
 .small-gap li, dt              {margin-top: 1em;}
 .no-gap                        {margin-bottom: 0;}
 .no-gap-li li                  {margin-top: 0;}
@@ skipping 63 matching lines @@
     float: right;
     margin: 2em 4em;
     }
 #home .big-intro {
     font-size: 16px;
     }
 #home iframe.video {
     display: block;
     margin: 1em auto 0;
     }
+#home .left-side {
+    float: left;
+    width: 54%;
+    background-color: #FFF;
+    }
+#home .left-side-inner {
+    padding-right: 40px;
+    }
 #home .right-side {
     float: right;
     width: 54%;
     background-color: #FFF;
     }
 #home .right-side-inner {
     padding-left: 40px;
     }
 
 /* CSS for the Release Notes page */
@@ skipping 251 matching lines @@
 }
 #doxygen-ref .memitem {
   border-top:1px solid #E5ECF9;
   border:none;
 }
 #doxygen-ref .doxygen-global {
   background-color: #ffcc66;
 }
 
 */