Rock Paper Scissors: Move note box to more sensible position

[mao-sz]

Acceptance criteria

• Move the "Focus on the task at hand" note box to the top of the assignment section (inside the assignment div).

Comment below if you'd like to be assigned to this issue. Please do not open a PR unless you've been assigned by a maintainer.

[pepprbell]

Hi, I'd love to contribute to this issue. Could you please assign it to me?

[mao-sz]

Have at it