fixup! A little cleanup of the XML settings file.

poca.xml

@@ -52,6 +52,7 @@
     <subscription>
       <title>Reversim</title>
       <url>https://feed.reversim.com/</url>
+      <max_number>10</max_number>
     </subscription>
     <subscription>
       <title>On The Metal</title>