Phase banner

Add a phase banner to your site by setting the phase: in the _config.yml file.

## For alpha services
phase: ALPHA

## For beta services
phase: BETA

Set the link for feedback by setting the phase_link: in the _config.yml file.

## For sending an email
phase_link: mailto:example@example.com?subject=Service name website feedback

## For a link to a form
phase_link: https://example.com/feedback-form