docs(docker): update examples for running Zebra in Docker #600

Job	Run time
Build CI Docker / Build images	1s
Unit tests / Test checkpoint sync from empty state	1s
Unit tests / Test all	1s
Unit tests / Test with fake activation heights	1s
Integration tests / Generate checkpoints mainnet / Run checkpoints-mainnet test	1s
Integration tests / Check if cached state disks exist for Mainnet / Get Mainnet cached disk	1s
Integration tests / get block template / Run get-block-template test	1s
Integration tests / lightwalletd tip / Run lwd-full-sync test	1s
Integration tests / Zebra tip JSON-RPC / Run fully-synced-rpc test	1s
Integration tests / lightwalletd tip send / Run lwd-send-transactions test	1s
Integration tests / submit block / Run submit-block test	1s
Unit tests / Test CI default Docker config file / Test default-conf in Docker	1s
Unit tests / Test integration with lightwalletd	1s
Integration tests / Zebra checkpoint update / Run sync-past-checkpoint test	1s
Integration tests / Zebra tip update / Run update-to-tip test	1s
Unit tests / Test CI custom Docker config file / Test custom-conf in Docker	1s
Integration tests / lightwalletd GRPC tests / Run lwd-grpc-wallet test	1s
Integration tests / lightwalletd tip update / Run lwd-update-sync test	1s
Unit tests / Test CI testnet Docker config file / Test testnet-conf in Docker	1s
	19s

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