Moved default branch to main

Author: evaherrada

README.rst

@@ -52,14 +52,14 @@ To install in a virtual environment in your current project:
 Usage Example
 =============
 
-Please check the `examples folder <https://github.com/adafruit/Adafruit_CircuitPython_MiniMQTT/tree/master/examples>`_
+Please check the `examples folder <https://github.com/adafruit/Adafruit_CircuitPython_MiniMQTT/tree/main/examples>`_
 for usage examples for this library.
 
 Contributing
 ============
 
 Contributions are welcome! Please read our `Code of Conduct
-<https://github.com/adafruit/Adafruit_CircuitPython_MiniMQTT/blob/master/CODE_OF_CONDUCT.md>`_
+<https://github.com/adafruit/Adafruit_CircuitPython_MiniMQTT/blob/main/CODE_OF_CONDUCT.md>`_
 before contributing to help this project stay welcoming.
 
 Documentation