diff --git a/core/client/templates/modals/markdown.hbs b/core/client/templates/modals/markdown.hbs
index 3fff7634d8..1f75eda481 100644
--- a/core/client/templates/modals/markdown.hbs
+++ b/core/client/templates/modals/markdown.hbs
@@ -50,6 +50,11 @@
                 <td>> quote</td>
                 <td>Ctrl + Q</td>
             </tr>
+            <tr>
+                <td><mark>Highlight</mark></td>
+                <td>==Highlight==</td>
+                <td></td>
+            </tr>
             <tr>
                 <td>H1</td>
                 <td># Heading</td>