fix test URL

Author: pfefferle

tests/templates/adactio-com.html

@@ -1004,7 +1004,7 @@ <h2>More information</h2>
 <h3>About this site</h3>
 
 <address class="vcard h-card">
-<a href="https://adactio.com/" class="url u-url" rel="me">Adactio</a> is the online home of <a href="mailto:[email protected]" class="email fn p-name u-email">Jeremy Keith</a>, a <span class="role p-role">web developer</span> and <span class="title p-job-title">author</span> living and working in <span class="adr p-adr"><span class="locality p-locality">Brighton</span>, <span class="country-name p-country-name">England</span></span>.
+<a href="http://example.com/" class="url u-url" rel="me">Adactio</a> is the online home of <a href="mailto:[email protected]" class="email fn p-name u-email">Jeremy Keith</a>, a <span class="role p-role">web developer</span> and <span class="title p-job-title">author</span> living and working in <span class="adr p-adr"><span class="locality p-locality">Brighton</span>, <span class="country-name p-country-name">England</span></span>.
 </address>
 <p><a href="/contact/">Get in touch</a></p>
 </div>