Update #1

	name: Build and push l4t r36.3 Docker image

	on:
	push:
	paths:
	- 'l4t-base/Dockerfile_r36.3_base'
	- 'l4t-base/packages_l4t.list'
	pull_request:
	paths:
	- 'l4t-base/packages_l4t.list'
	- 'l4t-base/Dockerfile_r36.3_base'

	jobs:
	build-and-push:
	runs-on: ubuntu-latest
	steps:
	- name: Checkout code
	uses: actions/checkout@v2

	- name: Set up Docker Buildx
	uses: docker/setup-buildx-action@v1

	- name: Login to DockerHub
	uses: docker/login-action@v1
	with:
	username: ${{ secrets.DOCKERHUB_USERNAME }}
	password: ${{ secrets.DOCKERHUB_TOKEN }}

	- name: Build and push
	uses: docker/build-push-action@v2
	with:
	context: .
	file: l4t-base/Dockerfile_r36.3_base
	push: true
	tags: kaylor/l4t-base:r36.3.0_base
	platforms: linux/arm64

	- name: Logout of DockerHub
	run: docker logout

Provide feedback