Add more changes to the 1.3 change list in the about page

Author: smfr

MotionMark/about.html

@@ -76,6 +76,8 @@ <h3>Version history</h3>
             <ul id="log">
                 <li><strong>1.3</strong>: 
                     <ul>
+                        <li><a href="https://github.com/WebKit/MotionMark/commit/37c610115c8c3fae8a74a18305727064c1fd4edc">Ignore mutation frames when scoring</li>
+                        <li><a href="https://github.com/WebKit/MotionMark/commit/da952728b532387c1d93789f36a44115e2d3cb84">The first frame of each ramp has an erroneously long frame duration</li>
                         <li><a href="https://github.com/WebKit/MotionMark/commit/c0a884c2df3287362a126484cd8c07c940015463">Add support for non-60Hz <code>requestAnimationFrame</code> rates</a></li>
                         <li><a href="https://github.com/WebKit/MotionMark/commit/9edd41ad33d24cc10b60576b8eb9626178f66122">Change the Multiply subtest to use <code>display:none</code> for non-animating elements</a></li>
                         <li><a href="https://github.com/WebKit/MotionMark/commit/2b2e9d4e89dbd83922e7960872e8ad5f2d23d043">Increase the maximum complexity of the Multiply subtest</a></li>