completed TODOs 13, 14, 15, 16 - views of subsets of books. Added 2 new TODOs to enhance their output / make the views better

templates/missing.html

@@ -0,0 +1,16 @@
+{% extends "base.html" %}
+
+{% block main_content %}
+
+<h3>Missing Books</h3>
+<table id="missing_table" class="table table-striped table-sm" data-toolbar="#toolbar" data-search="true">
+	<thead>
+		<tr class="thead-light"><th>Books</th><th>Series</th><th>Number of Books in Series</th></tr>
+	</thead>
+	<tbody>
+	{% for obj in books %}
+    	<tr><td>{{obj.missing}}</td><td><a href="{{url_for('series', id=obj.id )}}">{{obj.title}}</a></td><td>{{obj.num_books}}</td></tr>
+	{% endfor %}
+	</tbody>
+</table>
+{% endblock main_content %}