Remove parent-relative paths in internal links

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+			<p>The writing and artwork within are believed to be in the <abbr>U.S.</abbr> public domain, and Standard Ebooks releases this ebook edition under the terms in the <a href="https://creativecommons.org/publicdomain/zero/1.0/">CC0 1.0 Universal Public Domain Dedication</a>. For full license information, see the <a href="uncopyright.xhtml">Uncopyright</a> at the end of this ebook.</p>
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