docs/pyboard: Clarify initial files on pyboard and fix up formatting.
docs/pyboard: Clarify initial files on pyboard and fix up formatting.

pozetroninc/micropython,adafruit/circuitpython,bvernoux/micropython,kerneltask/micropython,bvernoux/micropython,selste/micropython,MrSurly/micropython,MrSurly/micropython,adafruit/circuitpython,henriknelson/micropython,tobbad/micropython,henriknelson/micropython,selste/micropython,tobbad/micropython,pozetroninc/micropython,pramasoul/micropython,pozetroninc/micropython,MrSurly/micropython,trezor/micropython,pramasoul/micropython,pramasoul/micropython,bvernoux/micropython,trezor/micropython,selste/micropython,tobbad/micropython,henriknelson/micropython,tobbad/micropython,tobbad/micropython,trezor/micropython,adafruit/circuitpython,selste/micropython,adafruit/circuitpython,bvernoux/micropython,trezor/micropython,pozetroninc/micropython,pramasoul/micropython,pramasoul/micropython,adafruit/circuitpython,pozetroninc/micropython,bvernoux/micropython,kerneltask/micropython,henriknelson/micropython,kerneltask/micropython,kerneltask/micropython,selste/micropython,MrSurly/micropython,adafruit/circuitpython,henriknelson/micropython,trezor/micropython,MrSurly/micropython,kerneltask/micropython