Disable interactive prompts

[simonw]

I upgraded from now cli 15 to now cli 17 and it's started asking me interactive questions during each deploy.

$ datasette publish now2 ../datasette/fixtures.db --title="Datasette Fixtures" --project=datasette-fixtures
Now CLI 17.1.1
? Set up and deploy “/private/var/folders/bl/5x847xbj2yb7xmp7f2tz7l280000gn/T/tmpnh5u9bys/datasette-now-v2”? [Y/n] y
? Which scope do you want to deploy to? simonw
? Found project “simonw/datasette-fixtures”. Link to it? [Y/n] y
🔗  Linked to simonw/datasette-fixtures (created .now and added it to .gitignore)
❗️  The `name` property in now.json is deprecated (https://zeit.ink/5F)
🔍  Inspect: https://zeit.co/simonw/datasette-fixtures/ciymmquh0 [3s]
✅  Preview: https://datasette-fixtures.simonw.now.sh [copied to clipboard] [16s]
📝  To deploy to production (datasette-fixtures.now.sh), run `now --prod`

[simonw]

From now --help:

...
    -C, --no-clipboard             Do not attempt to copy URL to clipboard
    -S, --scope                    Set a custom scope
    --regions                      Set default regions to enable the deployment on
    --prod                         Create a production deployment
    -c, --confirm                  Confirm default options and skip questions

I'm going to add --confirm. I'll add --no-clipboard too since that keeps clearing things from my clipboard that I didn't want to lose.

[simonw]

Having done that I get:

❗️  The `name` property in now.json is deprecated (https://zeit.ink/5F)
🔗  Linked to simonw/datasette-fixtures (created .now and added it to .gitignore)
🔍  Inspect: https://zeit.co/simonw/datasette-fixtures/ciymmquh0 [841ms]
✅  Preview: https://datasette-fixtures.simonw.now.sh [5s]
📝  To deploy to production (datasette-fixtures.now.sh), run `now --prod`

I'm going to default to using --prod. If people don't want that they can use a --no-prod option.

[simonw]

Still needs README updated.