Docs: Adding L entries, fixing API level

Bug: 18257922
Change-Id: Ic5a2d83a1f250b14444fd0aa72ed5ddd1ad6e411
diff --git a/src/source/build-numbers.jd b/src/source/build-numbers.jd
index 15e97a3..eea5f48 100644
--- a/src/source/build-numbers.jd
+++ b/src/source/build-numbers.jd
@@ -138,7 +138,7 @@
 <tr>
 <td>Lollipop</td>
 <td>5.0</td>
-<td>API level 20</td>
+<td>API level 21</td>
 </tr>
 </tbody>
 </table>