Update word count in metadata

src/epub/content.opf

@@ -59,7 +59,7 @@
 		(7) There’s often this weird way of putting things: “Obsticles used to say, ‘That the moon is made of green cheese’” instead of “Obsticles used to say that the moon is made of green cheese” or “Obsticles used to say: ‘The moon is made of green cheese’” It’s awkward, but I’m not sure how to make it any better without overly invasive editing.
 		(8) In book 10 there are some multi-paragraph quotes from Epicurus, with some editorial comments from D.L. interspersed; I've converted these to blockquotes with the editorial comments as ordinary paragraphs between them.</meta>
 		<meta property="se:word-count">179498</meta>
-		<meta property="se:reading-ease.flesch">48.77</meta>
+		<meta property="se:reading-ease.flesch">48.88</meta>
 		<meta property="se:url.encyclopedia.wikipedia">https://en.wikipedia.org/wiki/The_Lives_and_Opinions_of_Eminent_Philosophers</meta>
 		<meta property="se:url.vcs.github">https://github.com/standardebooks/diogenes-laertius_the-lives-and-opinions-of-eminent-philosophers_c-d-yonge</meta>
 		<dc:creator id="author">Diogenes Laërtius</dc:creator>