fix readme

README.md

@@ -20,19 +20,19 @@ You can connect major plataforms using the same bot core code by setting differe
 
 Installation
 
-`pip install botgen` (coming soon)
+`pip install botgen`
 
 Copy and paste the code below to a file called `run.py`
 
 ```python
 # run.py
-from botgen import botgen
+from botgen import Bot
 from botgen import BotMessage
 from botgen import BotWorker
 from botgen.adapters import WebAdapter
 
 adapter = WebAdapter()
-bot = botgen(adapter=adapter)
+bot = Bot(adapter=adapter)
 
 async def hello(bot_worker: BotWorker, message: BotMessage):
     await bot_worker.say("hello from bot")