docs: Define more clearly the behaviour of LED methods.
docs: Define more clearly the behaviour of LED methods.

Addresses issue #1006.

kerneltask/micropython,misterdanb/micropython,swegener/micropython,tuc-osg/micropython,trezor/micropython,PappaPeppar/micropython,dinau/micropython,turbinenreiter/micropython,SHA2017-badge/micropython-esp32,martinribelotta/micropython,bvernoux/micropython,paul-xxx/micropython,ruffy91/micropython,AriZuu/micropython,stonegithubs/micropython,neilh10/micropython,puuu/micropython,matthewelse/micropython,TDAbboud/micropython,EcmaXp/micropython,aethaniel/micropython,cwyark/micropython,micropython/micropython-esp32,cnoviello/micropython,selste/micropython,dxxb/micropython,lowRISC/micropython,Peetz0r/micropython-esp32,pozetroninc/micropython,emfcamp/micropython,kerneltask/micropython,lbattraw/micropython,henriknelson/micropython,redbear/micropython,blazewicz/micropython,ganshun666/micropython,torwag/micropython,ChuckM/micropython,martinribelotta/micropython,selste/micropython,cwyark/micropython,chrisdearman/micropython,blmorris/micropython,ceramos/micropython,trezor/micropython,hiway/micropython,cwyark/micropython,alex-robbins/micropython,tdautc19841202/micropython,cnoviello/micropython,adafruit/circuitpython,pramasoul/micropython,praemdonck/micropython,firstval/micropython,jmarcelino/pycom-micropython,ryannathans/micropython,matthewelse/micropython,omtinez/micropython,xuxiaoxin/micropython,neilh10/micropython,turbinenreiter/micropython,feilongfl/micropython,danicampora/micropython,Peetz0r/micropython-esp32,warner83/micropython,bvernoux/micropython,infinnovation/micropython,chrisdearman/micropython,omtinez/micropython,heisewangluo/micropython,blmorris/micropython,ChuckM/micropython,stonegithubs/micropython,micropython/micropython-esp32,pozetroninc/micropython,SungEun-Steve-Kim/test-mp,tobbad/micropython,adafruit/micropython,suda/micropython,praemdonck/micropython,MrSurly/micropython,dmazzella/micropython,aethaniel/micropython,tuc-osg/micropython,henriknelson/micropython,tralamazza/micropython,micropython/micropython-esp32,dmazzella/micropython,Timmenem/micropython,jimkmc/micropython,dmazzella/micropython,omtinez/micropython,galenhz/micropython,MrSurly/micropython,rubencabrera/micropython,hosaka/micropython,skybird6672/micropython,trezor/micropython,neilh10/micropython,alex-robbins/micropython,KISSMonX/micropython,danicampora/micropython,alex-robbins/micropython,adafruit/micropython,lbattraw/micropython,emfcamp/micropython,cwyark/micropython,mgyenik/micropython,misterdanb/micropython,Peetz0r/micropython-esp32,infinnovation/micropython,MrSurly/micropython-esp32,micropython/micropython-esp32,lowRISC/micropython,pfalcon/micropython,ahotam/micropython,SungEun-Steve-Kim/test-mp,noahwilliamsson/micropython,alex-march/micropython,HenrikSolver/micropython,SHA2017-badge/micropython-esp32,xyb/micropython,kerneltask/micropython,pfalcon/micropython,SHA2017-badge/micropython-esp32,EcmaXp/micropython,oopy/micropython,utopiaprince/micropython,selste/micropython,suda/micropython,mpalomer/micropython,adafruit/micropython,firstval/micropython,jlillest/micropython,noahwilliamsson/micropython,alex-march/micropython,blazewicz/micropython,kerneltask/micropython,mianos/micropython,drrk/micropython,xhat/micropython,orionrobots/micropython,rubencabrera/micropython,tdautc19841202/micropython,SungEun-Steve-Kim/test-mp,cloudformdesign/micropython,trezor/micropython,jimkmc/micropython,slzatz/micropython,redbear/micropython,adafruit/micropython,supergis/micropython,puuu/micropython,vitiral/micropython,jmarcelino/pycom-micropython,KISSMonX/micropython,HenrikSolver/micropython,blazewicz/micropython,dhylands/micropython,mhoffma/micropython,hosaka/micropython,jmarcelino/pycom-micropython,adamkh/micropython,MrSurly/micropython-esp32,pfalcon/micropython,mianos/micropython,neilh10/micropython,omtinez/micropython,ryannathans/micropython,lowRISC/micropython,adamkh/micropython,vriera/micropython,heisewangluo/micropython,torwag/micropython,feilongfl/micropython,toolmacher/micropython,ceramos/micropython,ceramos/micropython,dxxb/micropython,rubencabrera/micropython,hiway/micropython,MrSurly/micropython,matthewelse/micropython,ryannathans/micropython,dinau/micropython,paul-xxx/micropython,ahotam/micropython,kostyll/micropython,rubencabrera/micropython,adafruit/circuitpython,ericsnowcurrently/micropython,supergis/micropython,slzatz/micropython,pozetroninc/micropython,jimkmc/micropython,skybird6672/micropython,mhoffma/micropython,hiway/micropython,swegener/micropython,noahchense/micropython,adafruit/circuitpython,matthewelse/micropython,HenrikSolver/micropython,pramasoul/micropython,torwag/micropython,TDAbboud/micropython,EcmaXp/micropython,blmorris/micropython,suda/micropython,torwag/micropython,hosaka/micropython,hiway/micropython,heisewangluo/micropython,orionrobots/micropython,tobbad/micropython,infinnovation/micropython,chrisdearman/micropython,dinau/micropython,dinau/micropython,kostyll/micropython,ceramos/micropython,ericsnowcurrently/micropython,vriera/micropython,Timmenem/micropython,HenrikSolver/micropython,KISSMonX/micropython,martinribelotta/micropython,jimkmc/micropython,paul-xxx/micropython,ryannathans/micropython,hosaka/micropython,cnoviello/micropython,suda/micropython,alex-march/micropython,ganshun666/micropython,dhylands/micropython,noahchense/micropython,skybird6672/micropython,ernesto-g/micropython,adafruit/circuitpython,AriZuu/micropython,adamkh/micropython,ganshun666/micropython,tobbad/micropython,chrisdearman/micropython,ruffy91/micropython,Vogtinator/micropython,orionrobots/micropython,micropython/micropython-esp32,danicampora/micropython,oopy/micropython,utopiaprince/micropython,selste/micropython,paul-xxx/micropython,dxxb/micropython,AriZuu/micropython,feilongfl/micropython,SungEun-Steve-Kim/test-mp,alex-robbins/micropython,lowRISC/micropython,supergis/micropython,PappaPeppar/micropython,kostyll/micropython,cloudformdesign/micropython,pfalcon/micropython,heisewangluo/micropython,deshipu/micropython,blmorris/micropython,puuu/micropython,MrSurly/micropython,ernesto-g/micropython,omtinez/micropython,adafruit/circuitpython,SHA2017-badge/micropython-esp32,Vogtinator/micropython,ChuckM/micropython,firstval/micropython,mhoffma/micropython,xuxiaoxin/micropython,emfcamp/micropython,tuc-osg/micropython,noahchense/micropython,xuxiaoxin/micropython,puuu/micropython,tdautc19841202/micropython,xhat/micropython,galenhz/micropython,henriknelson/micropython,ganshun666/micropython,adamkh/micropython,ryannathans/micropython,ruffy91/micropython,oopy/micropython,henriknelson/micropython,ahotam/micropython,vriera/micropython,ernesto-g/micropython,PappaPeppar/micropython,noahwilliamsson/micropython,pozetroninc/micropython,mpalomer/micropython,drrk/micropython,vriera/micropython,mgyenik/micropython,turbinenreiter/micropython,warner83/micropython,xhat/micropython,jlillest/micropython,mgyenik/micropython,skybird6672/micropython,ChuckM/micropython,PappaPeppar/micropython,misterdanb/micropython,cloudformdesign/micropython,infinnovation/micropython,mgyenik/micropython,swegener/micropython,bvernoux/micropython,jlillest/micropython,Timmenem/micropython,TDAbboud/micropython,swegener/micropython,deshipu/micropython,aethaniel/micropython,bvernoux/micropython,lbattraw/micropython,jlillest/micropython,pramasoul/micropython,mianos/micropython,selste/micropython,toolmacher/micropython,AriZuu/micropython,vitiral/micropython,galenhz/micropython,emfcamp/micropython,ernesto-g/micropython,neilh10/micropython,PappaPeppar/micropython,dinau/micropython,cloudformdesign/micropython,ganshun666/micropython,Timmenem/micropython,vitiral/micropython,kostyll/micropython,redbear/micropython,mianos/micropython,noahchense/micropython,oopy/micropython,puuu/micropython,Vogtinator/micropython,ruffy91/micropython,danicampora/micropython,ericsnowcurrently/micropython,toolmacher/micropython,tuc-osg/micropython,blmorris/micropython,emfcamp/micropython,supergis/micropython,KISSMonX/micropython,Vogtinator/micropython,heisewangluo/micropython,ruffy91/micropython,deshipu/micropython,feilongfl/micropython,mpalomer/micropython,dxxb/micropython,tuc-osg/micropython,xyb/micropython,Peetz0r/micropython-esp32,cwyark/micropython,slzatz/micropython,noahwilliamsson/micropython,kerneltask/micropython,jmarcelino/pycom-micropython,paul-xxx/micropython,lbattraw/micropython,suda/micropython,praemdonck/micropython,noahchense/micropython,adamkh/micropython,cnoviello/micropython,misterdanb/micropython,deshipu/micropython,vriera/micropython,dmazzella/micropython,mianos/micropython,xhat/micropython,warner83/micropython,utopiaprince/micropython,MrSurly/micropython-esp32,lowRISC/micropython,turbinenreiter/micropython,redbear/micropython,SungEun-Steve-Kim/test-mp,Peetz0r/micropython-esp32,chrisdearman/micropython,toolmacher/micropython,dhylands/micropython,tobbad/micropython,tdautc19841202/micropython,martinribelotta/micropython,ericsnowcurrently/micropython,KISSMonX/micropython,tralamazza/micropython,vitiral/micropython,xyb/micropython,turbinenreiter/micropython,warner83/micropython,deshipu/micropython,orionrobots/micropython,stonegithubs/micropython,MrSurly/micropython-esp32,ceramos/micropython,blazewicz/micropython,galenhz/micropython,tralamazza/micropython,drrk/micropython,adafruit/micropython,adafruit/circuitpython,matthewelse/micropython,blazewicz/micropython,xyb/micropython,henriknelson/micropython,SHA2017-badge/micropython-esp32,rubencabrera/micropython,MrSurly/micropython,xhat/micropython,praemdonck/micropython,redbear/micropython,mpalomer/micropython,supergis/micropython,galenhz/micropython,pramasoul/micropython,oopy/micropython,vitiral/micropython,AriZuu/micropython,utopiaprince/micropython,feilongfl/micropython,pramasoul/micropython,pfalcon/micropython,alex-march/micropython,TDAbboud/micropython,praemdonck/micropython,toolmacher/micropython,jmarcelino/pycom-micropython,tdautc19841202/micropython,skybird6672/micropython,lbattraw/micropython,torwag/micropython,Vogtinator/micropython,EcmaXp/micropython,mhoffma/micropython,TDAbboud/micropython,ericsnowcurrently/micropython,utopiaprince/micropython,firstval/micropython,ahotam/micropython,aethaniel/micropython,cloudformdesign/micropython,firstval/micropython,pozetroninc/micropython,misterdanb/micropython,hosaka/micropython,swegener/micropython,dhylands/micropython,EcmaXp/micropython,xuxiaoxin/micropython,drrk/micropython,matthewelse/micropython,hiway/micropython,noahwilliamsson/micropython,mhoffma/micropython,ChuckM/micropython,ernesto-g/micropython,ahotam/micropython,xuxiaoxin/micropython,jlillest/micropython,martinribelotta/micropython,bvernoux/micropython,Timmenem/micropython,aethaniel/micropython,slzatz/micropython,dhylands/micropython,infinnovation/micropython,stonegithubs/micropython,trezor/micropython,jimkmc/micropython,cnoviello/micropython,stonegithubs/micropython,dxxb/micropython,alex-march/micropython,orionrobots/micropython,slzatz/micropython,warner83/micropython,tobbad/micropython,danicampora/micropython,xyb/micropython,alex-robbins/micropython,drrk/micropython,tralamazza/micropython,HenrikSolver/micropython,mpalomer/micropython,mgyenik/micropython,kostyll/micropython,MrSurly/micropython-esp32