add toc and flask example

README.md

@@ -7,12 +7,22 @@
 
 Bridging python logging and files to tg bot
 
+## Table of Contents
+- [Installation & Usage](#installation--usage)
+- [Examples](#examples)
+    * [Simple logging](#simple-logging)
+    * [Flask logging](#flask-logging)
+    * [TgFileLogger example](#tgfilelogger-example)
+    * [Example screenshot](#example-screenshot)
+- [FQA](#fqa)
+    * [How to create a telegram bot?](#how-to-create-a-telegram-bot)
+    * [How to get **token** and **user_id**?](#how-to-get-token-and-user_id)
 ## Installation & Usage
 - Available by `pip install tg-logger`
 - Use with `import tg_logger`
 
 ## Examples
-### TgLogger example
+### Simple logging
 ```python
 import logging
 import tg_logger
@@ -32,6 +42,33 @@ tg_logger.setup(logger, token=token, users=users)
 logger.info("Hello from tg_logger by otter18")
 ```
 
+### Flask logging
+```python
+from flask import Flask
+import logging
+import tg_logger
+
+# Telegram data
+token = "1234567890:AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA"
+users = [1111111111]
+
+# Flask app setup
+app = Flask(__name__)
+
+app.logger.setLevel(logging.ERROR) # flask logger
+tg_logger.setup(app.logger, token=token, users=users) # bridge setup
+
+
+@app.route('/')
+def hello_world():
+    return 'Hello, World!'
+
+
+if __name__ == '__main__':
+    app.run()
+
+```
+
 ### TgFileLogger example
 ```python
 import logging