update help page

extension/ui/pages/help.html

@@ -133,6 +133,11 @@
 						<p>Check this option to display a prompt dialog in order to confirm the infobar content before
 							saving the page. </p>
 					</li>
+					<li data-options-label="openSavedPageLabel"> <span class="option">Option: open saved pages in a new
+							tab</span>
+						<p>Check this option to display the saved page in a new tab. This option can be useful, for
+							example, in order to check the page is properly saved.</p>
+					</li>
 					<li data-options-label="autoCloseLabel"> <span class="option">Option: auto-close the tab after the
 							page is saved</span>
 						<p>Check this option to automatically close the tab after saving the page displayed inside. </p>
@@ -415,6 +420,11 @@
 							being loaded. With this option active, you are guaranteed pages will always be saved but
 							some frame contents may be missing (if you checked "remove frames"). </p>
 					</li>
+					<li data-options-label="autoSaveDiscardLabel"> <span class="option">Option: auto-save on tab
+							discard</span>
+						<p>Check this option to auto-save pages when discarding or closing a tab. Some frame contents
+							may be missing (if you checked "remove frames"). </p>
+					</li>
 					<li data-options-label="autoSaveDelayLabel"> <span class="option">Option: auto-save waiting delay
 							after load (s)</span>
 						<p>Specify the delay in seconds to wait before saving a page when the "auto-save on page load or