Fix #2668: broken links on landing page

Before #2519 is merged, this fix should be revisited

Author: felixmulder

docs/_includes/features.html

@@ -25,7 +25,7 @@ <h1 id="so-features">So, features?</h1>
                         <td>Implemented</td>
                     </tr>
                     <tr class="even">
-                        <td><a href="http://dotty.epfl.ch/docs/reference/pattern-matching.html">Option-less pattern matching</a></td>
+                        <td><a href="http://dotty.epfl.ch/docs/reference/changed/pattern-matching.html">Option-less pattern matching</a></td>
                         <td>Implemented</td>
                     </tr>
                     <tr class="odd">
@@ -37,7 +37,10 @@ <h1 id="so-features">So, features?</h1>
                         <td>Implemented</td>
                     </tr>
                     <tr class="even">
-                        <td><a href="http://dotty.epfl.ch/docs/reference/phantom-types.html">Phantom types</a></td>
+                        <td>
+                            <!--<a href="http://dotty.epfl.ch/docs/reference/phantom-types.html">Phantom types</a>-->
+                            Phantom types
+                        </td>
                         <td>Implemented</td>
                     </tr>
                     <tr class="odd">