* feat: add github action
Add github action for auto build slim torrverser alpine image with ffmpeg for linux/386,linux/amd64,linux/arm/v6,linux/arm/v7,linux/arm64,linux/ppc64le platforms
* build: move creating dirs and files to entrypoint
* fix: remove linux/386 and linux/ppc64le from docker building
* fix: update readme with docker info