Added more books to /docs/books/

Information collected by Sarah Conway <sarah.conway@crunchydata.com>

templates/pages/docs/books.html

@@ -10,6 +10,38 @@
         <th class="colLast">Information</th>
 </tr>
 
+<tr>
+        <td class="colFirst">
+            <a href="https://www.packtpub.com/big-data-and-business-intelligence/mastering-postgresql-10"><img
+                        src="/media/img/docs/books/packt_mastering_postgresql_10.png"
+                        alt="Mastering PostgreSQL 10" /></a>
+        </td>
+        <td class="colLast">
+                 <b>Title</b>: Mastering PostgreSQL 10<br />
+                 <b>Author</b>: Hans-Jürgen Schönig<br />
+                 <b>Language</b>: English<br />
+                 <b>Current version at publication</b>: 10.0<br />
+                 <b>Format</b>: Paperback, eBook<br />
+                 <b>Published</b>: January 2018<br />
+        </td>
+</tr>
+
+<tr>
+        <td class="colFirst">
+            <a href="https://bigmachine.io/products/a-curious-moon"><img
+                        src="/media/img/docs/books/a_curious_moon.jpg"
+                        alt="A Curious Moon" /></a>
+        </td>
+        <td class="colLast">
+                 <b>Title</b>: A Curious Moon<br />
+                 <b>Author</b>: Rob Conery<br />
+                 <b>Language</b>: English<br />
+                 <b>Current version at publication</b>: 10.0<br />
+                 <b>Format</b>: eBook<br />
+                 <b>Published</b>: December 2017<br />
+        </td>
+</tr>
+
 <tr>
         <td class="colFirst">
             <a href="http://masteringpostgresql.com/"><img