Updated readme

README.md

@@ -14,7 +14,7 @@ install prerequisite and switch to a Nano X dev-env:
 sudo apt install python3-venv python3-dev libudev-dev libusb-1.0-0-dev
 
 # (x or s, depending on your device)
-source prepare-devenv.sh x
+source prepare-devenv.sh s
 ```
 
 Compile and load the app onto the device:
@@ -75,33 +75,57 @@ with your Ledger device and Mina blockchain to allow you to generate
 addresses, sign transaction and submit them to the Mina network.
 
 ```bash
-$ ./utils/mina-ledger-wallet.py -h
-usage: mina-ledger-wallet.py [-h] {get-address,send-payment} ...
+$ ./utils/mina_ledger_wallet.py -h
+usage: mina_ledger_wallet.py [-h] [--verbose]
+                             {get-address,get-balance,send-payment,delegate}
+                             ...
 
 positional arguments:
-  {get-address,send-payment}
+  {get-address,get-balance,send-payment,delegate}
 
 optional arguments:
   -h, --help            show this help message and exit
+  --verbose             Verbose mode
 ```
 
 **Get address**
 
 ```bash
-$ ./utils/mina-ledger-wallet.py get-address 1
-Getting address...
-Received: B62qpaDc8nfu4a7xghkEni8u2rBjx7EH95MFeZAhTgGofopaxFjdS7P
+$ ./utils/mina_ledger_wallet.py get-address 1
+Get address for account 1 (path 44'/12586'/1/0/0)
+Continue? (y/N) y
+Generating address (please confirm on Ledger device)... done
+Received address: B62qpaDc8nfu4a7xghkEni8u2rBjx7EH95MFeZAhTgGofopaxFjdS7P
 ```
+This generates the keypair corresponding to hardware wallet account 1 (BIP44 account 44'/12586'/1/0/0) and returns the corresponding Mina address.
 
-This generates the keypair corresponding to hardware wallet account 1 (BIP44 address /44'/12586'/1/0/0) and returns the corresponding Mina address.
+**Get balance**
+
+```bash
+$ ./utils/mina_ledger_wallet.py get-balance B62qrGaXh9wekfwaA2yzUbhbvFYynkmBkhYLV36dvy5AkRvgeQnY6vx
+Getting network identifier... debug
+Getting account balance... done
+
+Address: B62qrGaXh9wekfwaA2yzUbhbvFYynkmBkhYLV36dvy5AkRvgeQnY6vx
+Balance: 9792.0
+```
+This queries the Mina blockchain for the balance of address B62qrGaXh9wekfwaA2yzUbhbvFYynkmBkhYLV36dvy5AkRvgeQnY6vx.
 
 **Send payment**
 
 ```bash
-$ ./utils/mina-ledger-wallet.py send-payment --fee 0.00271828 1 B62qpaDc8nfu4a7xghkEni8u2rBjx7EH95MFeZAhTgGofopaxFjdS7P B62qrPN5Y5yq8kGE3FbVKbGTdTAJNdtNtB5sNVpxyRwWGcDEhpMzc8g 100.5
+$ ./utils/mina_ledger_wallet.py send-payment 1 B62qpaDc8nfu4a7xghkEni8u2rBjx7EH95MFeZAhTgGofopaxFjdS7P B62qrPN5Y5yq8kGE3FbVKbGTdTAJNdtNtB5sNVpxyRwWGcDEhpMzc8g 2.71821
+```
+
+This sends a payment of 2.71821 Mina from hardware wallet account 1 (B62qpaDc8nfu4a7xghkEni8u2rBjx7EH95MFeZAhTgGofopaxFjdS7P) to recipient B62qrPN5Y5yq8kGE3FbVKbGTdTAJNdtNtB5sNVpxyRwWGcDEhpMzc8g.
+
+**Delegate**
+
+```bash
+$ ./utils/mina_ledger_wallet.py delegate 1 B62qpaDc8nfu4a7xghkEni8u2rBjx7EH95MFeZAhTgGofopaxFjdS7P B62qrPN5Y5yq8kGE3FbVKbGTdTAJNdtNtB5sNVpxyRwWGcDEhpMzc8g --memo "Delegation is fun!"
 ```
 
-This sends a payment of 100.5 Mina from hardware wallet account 1 (B62qpaDc8nfu4a7xghkEni8u2rBjx7EH95MFeZAhTgGofopaxFjdS7P) to recipient B62qrPN5Y5yq8kGE3FbVKbGTdTAJNdtNtB5sNVpxyRwWGcDEhpMzc8g.
+This delegates the entire balance of hardware wallet account 1 (B62qpaDc8nfu4a7xghkEni8u2rBjx7EH95MFeZAhTgGofopaxFjdS7P) to delegate B62qrPN5Y5yq8kGE3FbVKbGTdTAJNdtNtB5sNVpxyRwWGcDEhpMzc8g.
 
 ## Documentation
 This follows the specification available in the [`api.asc`](https://github.com/LedgerHQ/ledger-app-boilerplate/blob/master/doc/api.asc).