Update notes for 2017-01-17

public/post/index.xml

@@ -244,6 +244,10 @@ delete from collection2item where id = '91082';
 <pre><code>$ convert -compress Zip -density 150x150 input.pdf output.pdf
 $ gs -sDEVICE=pdfwrite -dCompatibilityLevel=1.4 -dPDFSETTINGS=/ebook -dNOPAUSE -dQUIET -dBATCH -sOutputFile=output.pdf input.pdf
 </code></pre>
+
+<ul>
+<li>Somewhere on the Internet suggested using a DPI of 144</li>
+</ul>
 </description>
     </item>