Add alternate title to metadata

src/epub/content.opf

@@ -28,6 +28,7 @@
 		<link href="onix.xml" media-type="application/xml" properties="onix" rel="record"/>
 		<dc:title id="title">The Square Emerald</dc:title>
 		<meta property="file-as" refines="#title">Square Emerald, The</meta>
+		<meta property="dcterms:alternative" refines="#title">The Woman</meta>
 		<dc:subject id="subject-1">Detective and mystery stories</dc:subject>
 		<dc:subject id="subject-2">Suspense fiction</dc:subject>
 		<meta property="authority" refines="#subject-1">LCSH</meta>