Update word count in metadata

src/epub/content.opf

@@ -52,7 +52,7 @@
 		<dc:language>en-US</dc:language>
 		<dc:source>https://www.gutenberg.org/ebooks/140</dc:source>
 		<dc:source>https://archive.org/details/jungle00sinc</dc:source>
-		<meta property="se:word-count">150918</meta>
+		<meta property="se:word-count">150913</meta>
 		<meta property="se:reading-ease.flesch">72.8</meta>
 		<meta property="se:url.encyclopedia.wikipedia">https://en.wikipedia.org/wiki/The_Jungle</meta>
 		<meta property="se:production-notes">Italics have been removed from some foreign words that are today known to modern readers and are found in Merriam-Webster. (Bon mot, petite, etc.)</meta>