Version 3.1.0

Notes
This update is a non-breaking change. In fact, it brings nothing new to those of you using GitHub Package Registry for your containers. You are only required to update if you would like to use the new GitHub Container Registry instead.

Additions

• Adds support for GitHub Container Registry.
• New optional input containerRegistry, which can be true or false, controls whether or not to use GitHub Container Registry instead of GitHub Package Registry.

Meta changes

• New documentation shows examples for both GitHub Package Registry and GitHub Container Registry usage.
• New table of contents for quick navigation through documentation.