[Content]: [Content]: "Portals" are used before they are introduced

[boazr-neosec]

📚 Subject area/topic

/concepts/components/event-handlers.mdx

📋 Page(s) affected (or suggested, for new content)

https://docs.solidjs.com/concepts/components/event-handlers

📋 Description of content that is out-of-date or incorrect

on the 'events' doc page 'Portals' are mentioned and used but it's unclear to the reader what they are. In fact, they are mentioned here for the first time so the reader might know even know such an entity exists in the world of Solid.
At minimum, add a reference to 'Portals' section but maybe just a few words on them would do even better:

Portals (which allow rendering content outside of the regular document flow, see more here) propagate events following the component tree and not the DOM tree, making them easier to use. This means when a Portal gets attached to the body, any events will propagate up to the container."

🖥️ Reproduction in StackBlitz (if reporting incorrect content or code samples)

No response