📚 Add info about boards renaming (#5797)

docs/user-guide/objects/index.njk

@@ -33,6 +33,20 @@ are shown by default at the <a href="/user-guide/view-mode">View mode</a>, actin
   </video>
 </figure>
 
+<h3>Rename boards</h3>
+<p>There several ways to rename boards:</p>
+<ul>
+  <li>Double click on the board name at the workspace viewport.</li>
+  <li>Double click on the board name at the layers panel.</li>
+  <li>Press <kbd>Alt/⌥</kbd> + <kbd>N</kbd> to rename the board at the layers panel.</li>
+  <li>Right click to show the menu and select "Rename".</li>
+</ul>
+<figure>
+  <video title="Rename board" muted="" playsinline="" controls="" width="auto" poster="/img/objects/board-rename.webp" height="auto">
+    <source src="/img/objects/board-rename.webm" type="video/webm">
+  </video>
+</figure>
+
 <h3>Set board as thumbnail</h3>
 <p>Select a specific board to be the file thumbnail that will be shown at <a href="/user-guide/the-interface/#dashboard-interface" target="_blank">the dashboard</a> in the file card.</p>
 <p>To set a custom thumbnail:</p>
@@ -171,7 +185,6 @@ You can choose to edit individual nodes or create new ones. Press <kbd>Esc</kbd>
   </video>
 </figure>
 
-
 <h2 id="images">Images</h2>
 <h3>Insert images</h3>
 <p>There are several options for inserting an image into a Penpot file:</p>