Pulsum: Pull and Summarize

Pull the current branch's latest upstream changes. Then explain the incoming changes as a short briefing: what changed, who did it, and why they most likely did it.

1. Check the repository before pulling

Run these commands from the repository the user is working in:

git rev-parse --show-toplevel
git status --short --branch
git rev-parse --abbrev-ref --symbolic-full-name @{u}