Added instructions to remove terminal history for macos/linux

jacogr / substrate-ledger-ed25519

Extract Substrate and Polkadot compatible ed25519 keys from Ledger mnemonic phrases

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Closed AndyW22 closed 3 years ago

AndyW22 commented 3 years ago

The mnemonic seed phrase will always be in the terminal history for macos/linux which isn't safe. I added instructions to remove it in the readme.