try to make more clear

src/ui/pages/help.html

@@ -988,10 +988,11 @@
 					<li><code>{filename-extension}</code>: the extension of the filename depending on the file format
 						(i.e. "html", "u.zip.html", "zip.html", "zip")</li>
 					<li><code>{save-action}</code>: the action used to save the page (i.e. "page", "selection")</li>
-					<li><code>{options-json}</code>: the JSON representation of the options used to save the page</li>
+					<li><code>{options-json}</code>: the JSON representation of the options used to save the page. Each
+						property name is written in camel case (e.g. "blockScripts")</li>
 					<li><code>{options-text}</code>: the text representation of the options used to save the page. The
 						text representation is formatted with a list of options and their values separated by a line
-						break (e.g. "option1: value1\noption2: value2")</li>
+						break (e.g. "saveRawPage: false\includeInfobar: true...")</li>
 				</ul>
 			</li>
 			<li><a id="template-functions" href="#template-functions">Template functions</a>
@@ -1342,4 +1343,4 @@
 	<script type="module" src="../bg/ui-help.js"></script>
 </body>
 
-</html>
+</html>