[Migrate]: Prelaunch Checklist #3

Link to the existing BP Codex page.

https://codex.buddypress.org/prelaunch-checklist/

What needs to be done?

Almost ready to be migrated!

I suggest to add @imath to the list of people to ping in case of questions about this checklist.

I believe we should remove these steps as we're not doing these anymore:

• Ask Paul Gibbs to update https://github.com/buddypress/BuddyPress-build (via git-svn he has locally).
• Ask Boone Gorges to go to https://packagist.org/packages/buddypress/buddypress and click “Update”.

Handbook to migrate the page in

buddypress/docs/contributor

Tasks to accomplish

• This task has been added to the "Todo" panel of the Documentation project.
• The corresponding line of the data/README.md Pages list has been marked as "Migrate issue/task created".
• A PR has been submitted to the BuddyPress GH repository, it has been linked to this issue/task & the task was moved to the "In progress" panel of the Documentation project.
• The PR has been converted to a SVN patch and committed to the BuddyPress SVN repository & the task was moved to the "Done" panel of the Documentation project.