README update

README.md

@@ -1,7 +1,58 @@
 # mab
 
-**mab** *(MAtrix Bot) is a **very** simple Python package that can be used to
+**mab** *(MAtrix Bot)* is a **very** simple Python package that can be used to
 develop **very** simple Matrix bots. I have decided to make something like this
 because I wasn't satisfied by simplicity and usage of other libraries. So
 this library does not aim to be "the best matrix bot library", it only aims to
 be good enough for me.
+
+## Installation
+
+Use `pip` to install this package:
+
+```bash
+python -m pip install git+https://git.tyukalov.su/nikita/mab
+```
+
+## Basic usage
+
+This is the most simple bot you can create
+
+```python
+import asyncio
+from mab import MatrixBot, MatrixBotConfig
+from nio import MatrixRoom, MatrixMessageText
+
+bot: MatrixBot
+
+async def on_room_message_text(room: MatrixRoom, event: RoomMessageText) -> None:
+    global bot
+    # do not respond to ourselves
+    if event.sender == bot.get_client().user_id:
+        return
+    text = f"You message contains {len(event.body)} symbols"
+    await bot.send_text_to_room(room.room_id, text)
+
+
+async def main() -> None:
+    global bot
+    # create and start the bot
+    cfg = MatrixBotConfig(
+        matrix_homeserver_url="matrix.domain.su",
+        matrix_username_localpart="nagibator666",
+        storage_directory=Path("storage_nagibator666")
+    )
+    bot = MatrixBot(matrix_bot_config)
+    bot.start()
+    # wait for Ctrl+C
+    try:
+        while True:
+            await asyncio.sleep(1)
+    except:
+        pass
+    # stop the bot
+    await bot.stop()
+
+if __name__ == "__main__":
+    asyncio.run(main())
+```