Update README.md

README.md

@@ -10,6 +10,19 @@ import love
 import antigravity
 ```
 
+Also
+
+```python
+this.authors()
+love.badaboom()
+```
+
+## Some Lesser Known Facts
+
+Since Python and MicroPython are interpreted languages, they eat a lot of memory. Also, the hex file generated by micro:bit Python editors are consisted of 2 parts: the MicroPython firmware (up to 248 KB) and user's script (up to only 8 KB). See [Firmware Hex File](https://microbit-micropython.readthedocs.io/en/latest/devguide/hexformat.html). Which means it's not possible to build big projects with micro:bit's MicroPython.
+
+Also, how micro:bit get its own version of MicroPython anyway: [The Story of MicroPython on the BBC micro:bit](http://ntoll.org/article/story-micropython-on-microbit) by Nicholas H. Tollervey, who also created the [Mu editor](https://codewith.mu/), which is easier to use than the official online editor.
+
 ## Fill LED Display
 
 ```python