Update Onboarding demo requirments (#1708)

As discussed in the recent curriculum team meeting, this levels the
playing field a bit for folks without laptops, while still getting
people into the habits we're aiming for.

Author: illicitonion

org-cyf-itp/content/onboarding/success/index.md

@@ -37,7 +37,7 @@ weight = 11
 1. Make a new issue on your own Coursework Planner.
    - Follow this template for naming your issue: `<COHORT_NAME> | Onboarding | <YOUR_NAME>`
 1. On the issue, add:
-   - A screenshot showing that you [gave a demo in a demo session with particular members of staff present](https://github.com/CodeYourFuture/Module-Onboarding/issues/918).
+   - A screenshot showing that you [attended a demo in a demo session with particular members of the CYF team present](https://github.com/CodeYourFuture/Module-Onboarding/issues/918).
    - A screenshot showing that you took part in an online study session with at least one other trainee. This could be a video call, a Slack thread, or something else!
    - A link to your _completed_ pull request for "[Wireframe to Web Code](https://github.com/CodeYourFuture/Module-Onboarding/issues/17)".
    - A link to your _completed_ pull request for "[Form Controls](https://github.com/CodeYourFuture/Module-Onboarding/issues/19)".