windows/README: Add a note about stack usage for msvc
windows/README: Add a note about stack usage for msvc

Add information as discussed in #2927 to the readme to make the easier
to discover.

trezor/micropython,adafruit/circuitpython,chrisdearman/micropython,selste/micropython,deshipu/micropython,adafruit/circuitpython,trezor/micropython,torwag/micropython,hiway/micropython,pfalcon/micropython,pfalcon/micropython,henriknelson/micropython,pfalcon/micropython,lowRISC/micropython,pfalcon/micropython,cwyark/micropython,dmazzella/micropython,HenrikSolver/micropython,adafruit/circuitpython,toolmacher/micropython,bvernoux/micropython,MrSurly/micropython,torwag/micropython,TDAbboud/micropython,blazewicz/micropython,pozetroninc/micropython,pramasoul/micropython,selste/micropython,Timmenem/micropython,ryannathans/micropython,AriZuu/micropython,toolmacher/micropython,SHA2017-badge/micropython-esp32,deshipu/micropython,infinnovation/micropython,tobbad/micropython,MrSurly/micropython-esp32,TDAbboud/micropython,hiway/micropython,pozetroninc/micropython,trezor/micropython,MrSurly/micropython,AriZuu/micropython,kerneltask/micropython,blazewicz/micropython,adafruit/circuitpython,torwag/micropython,hiway/micropython,bvernoux/micropython,adafruit/micropython,micropython/micropython-esp32,puuu/micropython,adafruit/circuitpython,hiway/micropython,henriknelson/micropython,adafruit/circuitpython,adafruit/micropython,ryannathans/micropython,blazewicz/micropython,infinnovation/micropython,kerneltask/micropython,selste/micropython,dmazzella/micropython,MrSurly/micropython,pramasoul/micropython,HenrikSolver/micropython,Timmenem/micropython,PappaPeppar/micropython,puuu/micropython,deshipu/micropython,chrisdearman/micropython,MrSurly/micropython-esp32,Timmenem/micropython,oopy/micropython,lowRISC/micropython,chrisdearman/micropython,alex-robbins/micropython,swegener/micropython,kerneltask/micropython,adafruit/micropython,oopy/micropython,dmazzella/micropython,TDAbboud/micropython,MrSurly/micropython,kerneltask/micropython,trezor/micropython,lowRISC/micropython,adafruit/micropython,Timmenem/micropython,pramasoul/micropython,PappaPeppar/micropython,ryannathans/micropython,kerneltask/micropython,cwyark/micropython,cwyark/micropython,micropython/micropython-esp32,pramasoul/micropython,oopy/micropython,AriZuu/micropython,pfalcon/micropython,AriZuu/micropython,alex-robbins/micropython,puuu/micropython,tobbad/micropython,alex-robbins/micropython,oopy/micropython,SHA2017-badge/micropython-esp32,tralamazza/micropython,tralamazza/micropython,bvernoux/micropython,MrSurly/micropython,bvernoux/micropython,henriknelson/micropython,swegener/micropython,deshipu/micropython,chrisdearman/micropython,henriknelson/micropython,AriZuu/micropython,blazewicz/micropython,toolmacher/micropython,Timmenem/micropython,TDAbboud/micropython,pozetroninc/micropython,tralamazza/micropython,infinnovation/micropython,cwyark/micropython,puuu/micropython,MrSurly/micropython-esp32,blazewicz/micropython,pozetroninc/micropython,micropython/micropython-esp32,swegener/micropython,selste/micropython,HenrikSolver/micropython,HenrikSolver/micropython,infinnovation/micropython,ryannathans/micropython,adafruit/micropython,lowRISC/micropython,toolmacher/micropython,oopy/micropython,tobbad/micropython,SHA2017-badge/micropython-esp32,HenrikSolver/micropython,PappaPeppar/micropython,infinnovation/micropython,henriknelson/micropython,puuu/micropython,bvernoux/micropython,SHA2017-badge/micropython-esp32,tobbad/micropython,dmazzella/micropython,torwag/micropython,toolmacher/micropython,alex-robbins/micropython,swegener/micropython,alex-robbins/micropython,torwag/micropython,MrSurly/micropython-esp32,pozetroninc/micropython,tralamazza/micropython,deshipu/micropython,chrisdearman/micropython,pramasoul/micropython,tobbad/micropython,TDAbboud/micropython,PappaPeppar/micropython,PappaPeppar/micropython,lowRISC/micropython,MrSurly/micropython-esp32,swegener/micropython,selste/micropython,micropython/micropython-esp32,trezor/micropython,micropython/micropython-esp32,hiway/micropython,cwyark/micropython,ryannathans/micropython,SHA2017-badge/micropython-esp32