feat: upgrade go 1.22 and fiber v3

README.md

@@ -3,6 +3,7 @@
 Bitcoin Payment Checker is a Go application that allows clients to pay for orders using Bitcoin. The application calculates the Bitcoin equivalent of the order amount, provides a wallet address for payment, and tracks the payment status.
 
 ## Demo
+
 You can try it here on bitcoin testnet: https://btcpaychecker.urkob.com/
 
 ## Application Structure
@@ -31,7 +32,8 @@ This will start the application and listen for HTTP requests on the configured p
 ## Environment Variables
 
 The application uses the following environment variables:
-```
+
+```env
     PAY_CHECKER_ENV: The environment the application is running in. If set to "dev", the application will load configuration from a .env file.
     DB_ADDRESS: The address of the MongoDB database.
     DB_NAME: The name of the MongoDB database.
@@ -39,15 +41,16 @@ The application uses the following environment variables:
     CONVERSOR_API: The API used for converting USD to Bitcoin.
     RPC_HOST, RPC_AUTH, RPC_ZMQ, WALLET_ADDRESS: Configuration for the Bitcoin service.
     MAIL_USER, MAIL_PASSWORD, MAIL_HOST, MAIL_PORT, MAIL_FROM: Configuration for the mail service.
-```    
+```
 
 ### Webhook configuration
+
 If you want some http endpoint to be called by **POST** you have to set up `WEBHOOK_URL` as environment variable with absolute URL of your endpoint. After payment is completed by client, order will be send through http `POST`.
 
 ## Dependencies
 
 The application uses several external packages:
 
-    gofiber/fiber/v2: For building the HTTP server and handling requests.
-    go.mongodb.org/mongo-driver/mongo: For connecting to and interacting with MongoDB.
-    net/smtp: For sending emails.
+gofiber/fiber/v2: For building the HTTP server and handling requests.
+go.mongodb.org/mongo-driver/mongo: For connecting to and interacting with MongoDB.
+net/smtp: For sending emails.