Update git import and add package requirement comment

telegram_helper.py

@@ -3,7 +3,8 @@ import logging
 import sys
 import asyncio
 import time
-import git
+# Note: You need to install the GitPython package: pip install GitPython
+from git import Repo
 from telegram import Update, InlineKeyboardButton, InlineKeyboardMarkup
 from telegram.ext import Application, CommandHandler, MessageHandler, filters, ContextTypes, CallbackQueryHandler
 
@@ -11,7 +12,7 @@ class TelegramHelper:
     def __init__(self, bot):
         self.bot = bot
         self.telegram_bot_token = os.getenv('TELEGRAM_BOT_TOKEN')
-        self.repo = git.Repo(os.getcwd())
+        self.repo = Repo(os.getcwd())
         self.start_time = time.time()
 
     async def start(self, update: Update, context: ContextTypes.DEFAULT_TYPE) -> None: