defined docker file and added demo test script

Dockerfile

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+FROM python:3.10 
+# Or any preferred Python version.
+ADD example_bot.py .
+RUN pip install discord.py
+CMD [“python”, “./example_bot.py”] 
+# Or enter the name of your unique directory and parameter set.

example_bot.py

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+# This example requires the 'message_content' intent.
+
+import discord
+import os
+
+intents = discord.Intents.default()
+intents.message_content = True
+
+client = discord.Client(intents=intents)
+
+@client.event
+async def on_ready():
+    print(f'We have logged in as {client.user}')
+
+@client.event
+async def on_message(message):
+    if message.author == client.user:
+        return
+
+    if message.content.startswith('$hello'):
+        await message.channel.send('Hello cisco!')
+
+client.run(os.getenv('TOKEN'))