Update word count in metadata

src/epub/content.opf

@@ -57,7 +57,7 @@
 		<dc:source>https://www.google.com/books/edition/Mutual_Aid/5zhjAAAAMAAJ</dc:source>
 		<meta property="se:production-notes">The appendix was not inlined into the endnotes because some of the entries are too long to be comfortably read as an endnote.</meta>
 		<meta property="se:word-count">88477</meta>
-		<meta property="se:reading-ease.flesch">42.55</meta>
+		<meta property="se:reading-ease.flesch">42.65</meta>
 		<meta property="se:url.encyclopedia.wikipedia">https://en.wikipedia.org/wiki/Mutual_Aid:_A_Factor_of_Evolution</meta>
 		<meta property="se:url.vcs.github">https://github.com/standardebooks/peter-kropotkin_mutual-aid</meta>
 		<dc:creator id="author">Peter Kropotkin</dc:creator>