feat: env file

.env.example

@@ -0,0 +1 @@
+VITE_BANK_ADDR = ""

.gitignore

@@ -26,3 +26,4 @@ coverage
 *.njsproj
 *.sln
 *.sw?
+.env

README.md

@@ -17,14 +17,12 @@ npm install
 
 ### fill in your smart contract's address
 
-```javascript
+```sh
-// /src/views/FaucetView.vue line 46
+cp .env.example .env
-    const transactionParameters = {
+vim .env
-        from: ethereum.selectedAddress,
+'''
-        to: '',               // smart contract's address
+VITE_BANK_ADDR = "YOUR BANK ADDRESS"
-        data: encodeFunctionCall,
+'''
-        value: '0x00',
-    }
 
 ```