Initial commit: Backup der Webseiten

- zoesch.de
- blitzkiste.net
- gruene-hassberge (norbert.zoesch.de)

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Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>

zoesch.de/galerie/language/en_UK/help/synchronize.html

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+<h2>Synchronise</h2>
+
+<p>There are two different types of synchronisation:</p>
+<ul>
+	<li>directories/files</li>
+	<li>file metadata</li>
+</ul>
+
+<p>Synchronising directories and files is about updating your directories tree with the album tree in the database. 
+Synchronising file metadata is about updating photo information, such as filesize, dimensions in pixels, EXIF or IPTC information, in the database.</p>
+
+<p>When synchronising your uploads with your gallery you must first synchronise directories and files.</p>
+
+<p>The synchronisation process may take a long time (depending on server load and the number of elements to manage) so it is possible to do it album by album.</p>