docs: update content

docs/src/docPages/guide/menus.md

@@ -35,6 +35,9 @@ The [floating menu](/api/extensions/floating-menu) appears in empty lines. Marku
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+### Slash commands (work in progress)
+It’s not an official extension yet, but [there’s an experiment you can use to add what we call slash commands](/experiments/commands). It’ll allow you to start a new line with `/` and will bring up a popup to select which node should be added.
+
 ## Buttons
 Okay, you’ve got your menu. But how do you wire things up?
 ### Commands