Fix daily feed parsing error

```
XML Parsing Error: mismatched tag. Expected: </div>.
Location: https://www.oliverdavies.uk/rss/daily.xml
Line Number 23, Column 11:
        </description>
----------^
```

source/_pages/rss/daily.xml.twig

@@ -38,7 +38,8 @@ use:
             {% else %}
               <p>P.S. {{ random(site.ctas)|raw }}</p>
             {% endif %}
-          </div>]]>
+            ]]>
+          </div>
         </description>
         <pubDate>{{ email.date|date('D, d M Y H:i:s') }} GMT</pubDate>
         <snippet>{{ email.snippet }}</snippet>