Mattt

Add input to specify PNG, JPEG, or WebP output formats

3

Resolves #75 Currently, predictions generate images in PNG format. This PR adds a new `format` input that allows predictions to generate JPEG and WebP formats instead. If unspecified, the PNG...

Alternative to #283

Create Homebrew formula

3

We should support installation of the CLI using [Homebrew](https://brew.sh).

Provide installation options on Linux and BSD

1

We should provide a convenient way to install the `dependabot` on Linux platforms.

Notify users when new version of Cog is available

1

Kudos to @fofr for suggesting this. It would be helpful if Cog could tell users when a new version is available, similar to other tools (also on an opt-out basis)....