pluto should be in fixture

Author: Floppy

spec/fixtures/planetary_bodies.html

@@ -18,4 +18,5 @@
 <tr><td></td><td>Oberon</td><td class="add"></td><td>0.347</td></tr>
 <tr><td>+</td><td>Neptune</td><td class="add">4553946490</td><td>11.28</td></tr>
 <tr class="modify"><td class="modify">→</td><td>Triton</td><td class="add"></td><td class="modify"> 0.779→0.779</td></tr>
+<tr class="modify"><td class="modify">→</td><td>Pluto</td><td class="add">7311000000</td><td class="modify"> 0.61→0.61</td></tr>
 </table>