message: Add 'Copy content from last week' text to prioritization procedure
diff: @@ -53,6 +53,7 @@ High level overview:
  - Notify WG leads about [next week's
  checkins](https://rust-lang.github.io/compiler-team/about/triage-meeting/)
  - Create an empty agenda using [our template](https://hackmd.io/WQW0yzDDS16YvtBNurmj6A), as soon as our Thursday's weekly meeting ends. After creating the meeting change document permissions to Write -> Owners.
  +- Copy content from last week's agenda that is still pending. The relevant sections are `PRs waiting on team`, `P-critical`, `Unassigned P-high regressions` and `Nominated issues`.
  ### Prepare agenda content
  