According to asciinema.org, it should be possible to change the title
after uploading, but I couldn't figure out how to do that. Let's set
it when creating the recording. That also means it's one less step to
perform when re-running scripts.
I find it frustrating to wait for the typing, but I need much more
time to think between commands (and users who are new to the tool
surely need even more time).
Most commands are non-interactive, so this reduces duplication. We can
add another function for running a command and not waiting for a
prompt when we need it.
