Add Harvard Classics Shelf of Fiction collection

src/epub/content.opf

@@ -56,6 +56,8 @@
 		<meta property="authority" refines="#subject-9">LCSH</meta>
 		<meta property="term" refines="#subject-9">sh2007100752</meta>
 		<meta property="se:subject">Fiction</meta>
+		<meta id="collection-1" property="belongs-to-collection">Harvard Classics Shelf of Fiction</meta>
+		<meta property="collection-type" refines="#collection-1">set</meta>
 		<dc:description id="description">A young American woman travelling through Europe excites both admiration and intrigue.</dc:description>
 		<meta id="long-description" property="se:long-description" refines="#description">
 			&lt;p&gt;&lt;i&gt;The Portrait of a Lady&lt;/i&gt; is widely held to be the outstanding work of &lt;a href="https://standardebooks.org/ebooks/henry-james"&gt;Henry James’s&lt;/a&gt; “early” period, and among the finest novels of his entire career.&lt;/p&gt;