add hr divider to tag index

Changed files
+2
app
views
+2
app/views/tags/index.html.erb
··· 10 10 <% end %> 11 11 </ul> 12 12 13 + <hr> 14 + 13 15 <p> 14 16 <%= link_to "home", articles_path %> 15 17 </p>