Added walkthrough guide

jokes-bot-v3.0/app.py

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+from telegram import Update
+from telegram.ext import Application, CommandHandler, ContextTypes
+import random
+
+JOKE_LIST = [
+    "Why did the robot go to school? To recharge his brain! 🔋",
+    "Knock knock!\\nWho's there?\\nLettuce!\\nLettuce who?\\nLettuce in!",
+    "Why don't eggs tell jokes? They'd crack each other up! 🥚"
+]
+
+async def start(update: Update, context: ContextTypes.DEFAULT_TYPE):
+    await update.message.reply_text("Hi! Type /joke for a funny joke! 😄")
+
+async def send_joke(update: Update, context: ContextTypes.DEFAULT_TYPE):
+    joke = random.choice(JOKE_LIST)
+    await update.message.reply_text(joke)
+
+def main():
+    # Using the provided bot token
+    BOT_TOKEN = ""
+    
+    app = Application.builder().token(BOT_TOKEN).build()
+    app.add_handler(CommandHandler("start", start))
+    app.add_handler(CommandHandler("joke", send_joke))
+    print("Bot is running... Press Ctrl+C to stop.")
+    app.run_polling()
+
+if __name__ == "__main__":
+    main()