docs: guide to manually publish docker images #9307

Job	Run time
docker-security-build / prepare-env	3s
docker-security-build / prepare-env	3s
docker-txsim-build / prepare-env	4s
docker-txsim-build / prepare-env	4s
docker-security-build / logic-check	1s
docker-security-build / logic-check	1s
docker-txsim-build / logic-check	1s
docker-txsim-build / logic-check	1s
docker-security-build / docker-security	2m 6s
docker-security-build / docker-security	2m 12s
docker-txsim-build / docker-security	1m 45s
docker-txsim-build / docker-security	1m 45s
docker-txsim-build / docker-build (DockerHub; docker.io/celestiaorg/txsim)	3s
docker-txsim-build / docker-build (DockerHub; docker.io/celestiaorg/txsim)	3s
docker-txsim-build / docker-build (GHCR; ghcr.io/celestiaorg/txsim)	1m 47s
docker-txsim-build / docker-build (GHCR; ghcr.io/celestiaorg/txsim)	1m 47s
docker-txsim-build / docker-build (ScaleWay; rg.fr-par.scw.cloud/celestiaorg/txsim)	3s
docker-txsim-build / docker-build (ScaleWay; rg.fr-par.scw.cloud/celestiaorg/txsim)	3s
docker-security-build / docker-build (${{ matrix.registry.name }}; ${{ matrix.registry.registry-url }}/${{ matrix.registry.registry-owner }}/${{ needs.prepare-env.outputs.output_image_name }})	0s
docker-security-build / docker-build (DockerHub; docker.io/celestiaorg/celestia-app)	4s
docker-security-build / docker-build (GHCR; ghcr.io/celestiaorg/celestia-app)	2m 4s
docker-security-build / docker-build (ScaleWay; rg.fr-par.scw.cloud/celestiaorg/celestia-app)	5s
	14m 5s

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