Please check the type of change your PR introduces:

• Feature

Issue Number (if applicable): #28

Briefly outline your changes: Enables user to have HTML and inline styles rendered in the footer. Uses v-html.
Example usage:

pageInfo:
  title: Dashy
  footerText: '<div style="text-align: left;"><h1 style="color: blue;">HTML Footer Example</h1><ul><li>Bullet 1</li><li>Bullet 2</li></ul></div>'

Before submitting, please ensure that:

• Must be backwards compatible
• All lint checks and tests must pass
• If a new option in the the config file is added, it needs to be added into the schema, and documented in the configuring guide
• If a new dependency is required, it must be essential, and it must be thoroughly checked out for security or efficiency issues