Update README.md

Author: NullpointerW

README.md

@@ -5,19 +5,19 @@ ethereum-wallet-tool
 * Batch transfer to wallet
 ## install
 ```shell
-go build ehtwt.exe/ethwt
+go build ewt.exe/ewt
 ```
 ## usage
 Command help:
 ```shell
-ehtwt.exe --help
+ewt.exe --help
 ```
 1. Configure the primary wallet key in the `.PK` file.
 2. Generate a specified number of wallets in bulk,and Wallet information will be logged as JSON.
 ```shell
-ehtwt.exe gen {num}
+ewt.exe gen {num}
 ```
 3. Use the main wallet to batch transfer a specified amount of eth to all wallets in wallet.json,and txRecord record will be logged as JSON.
 ```shell
-ehtwt.exe tx {value}
+ewt.exe tx {value}
 ```