add cmd README

cmd/status-hardware-wallet/README.md

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+# status-hardware-wallet
+
+`status-hardware-wallet` is a command line tool you can use to initialize a [Status Hardware Wallet](https://github.com/status-im/hardware-wallet).
+
+## Installation
+
+`go get github.com/status-im/hardware-wallet-go/cmd/status-hardware-wallet`
+
+## Usage
+
+### Install the hardware wallet applet
+
+```bash
+status-hardware-wallet install -l debug -a applets/wallet-new.cap
+```
+
+In case the applet is already installed and you want to force a new installation you can pass the `-f` flag.
+
+### Card info
+
+```bash
+status-hardware-wallet info -l debug
+```
+
+The `info` command will print something like this:
+
+```
+Installed: true
+Initialized: false
+InstanceUID: 0x
+PublicKey: 0x112233...
+Version: 0x
+AvailableSlots: 0x
+KeyUID: 0x<Paste>
+```
+
+### Card initialization
+
+
+```bash
+status-hardware-wallet init -l debug
+```
+
+The `init` command initializes the card and generates the secrets needed to pair the card to a device.
+The output
+
+```
+PIN 123456
+PUK 123456789012
+Pairing password: RandomPairingPassword
+```
+
+### Pairing
+
+```bash
+status-hardware-wallet pair -l debug
+```
+
+The process will ask for `PairingPassword` and `PIN` and will generate a pairing key you can use to interact with the card.