Add artist Wikipedia page

src/epub/content.opf

@@ -56,6 +56,7 @@
 		<meta property="role" refines="#author" scheme="marc:relators">wpr</meta>
 		<dc:contributor id="artist">Torsten Gideon Wasastjerna</dc:contributor>
 		<meta property="file-as" refines="#artist">Wasastjerna, Torsten Gideon</meta>
+		<meta property="se:url.encyclopedia.wikipedia" refines="#artist">https://en.wikipedia.org/wiki/Torsten_Wasastjerna</meta>
 		<meta property="se:url.authority.nacoaf" refines="#artist">http://id.loc.gov/authorities/names/nr2004008092</meta>
 		<meta property="role" refines="#artist" scheme="marc:relators">art</meta>
 		<dc:contributor id="transcriber-1">Suzanne L. Shell</dc:contributor>

src/epub/text/colophon.xhtml

@@ -27,7 +27,7 @@
 			<p>The cover page is adapted from<br/>
 			<i epub:type="se:name.visual-art.painting">Boat by the Shore</i>,<br/>
 			a painting completed in 1888 by<br/>
-			<b epub:type="z3998:personal-name">Torsten Gideon Wasastjerna</b>.<br/>
+			<a href="https://en.wikipedia.org/wiki/Torsten_Wasastjerna">Torsten Gideon Wasastjerna</a>.<br/>
 			The cover and title pages feature the<br/>
 			<b epub:type="se:name.visual-art.typeface">League Spartan</b> and <b epub:type="se:name.visual-art.typeface">Sorts Mill Goudy</b><br/>
 			typefaces created in 2014 and 2009 by<br/>