docs/utime: Clarify module purpose.
docs/utime: Clarify module purpose.

trezor/micropython,alex-robbins/micropython,ryannathans/micropython,dinau/micropython,henriknelson/micropython,mhoffma/micropython,AriZuu/micropython,Timmenem/micropython,MrSurly/micropython,MrSurly/micropython-esp32,ryannathans/micropython,turbinenreiter/micropython,hosaka/micropython,Timmenem/micropython,lowRISC/micropython,mpalomer/micropython,cwyark/micropython,infinnovation/micropython,torwag/micropython,bvernoux/micropython,PappaPeppar/micropython,SHA2017-badge/micropython-esp32,dxxb/micropython,pramasoul/micropython,deshipu/micropython,lowRISC/micropython,swegener/micropython,matthewelse/micropython,blazewicz/micropython,trezor/micropython,deshipu/micropython,jmarcelino/pycom-micropython,PappaPeppar/micropython,HenrikSolver/micropython,Timmenem/micropython,adafruit/micropython,bvernoux/micropython,trezor/micropython,AriZuu/micropython,toolmacher/micropython,Peetz0r/micropython-esp32,jmarcelino/pycom-micropython,HenrikSolver/micropython,ganshun666/micropython,dinau/micropython,blazewicz/micropython,oopy/micropython,pozetroninc/micropython,ganshun666/micropython,matthewelse/micropython,puuu/micropython,cwyark/micropython,HenrikSolver/micropython,dinau/micropython,alex-robbins/micropython,mhoffma/micropython,deshipu/micropython,pozetroninc/micropython,henriknelson/micropython,matthewelse/micropython,bvernoux/micropython,tuc-osg/micropython,hiway/micropython,toolmacher/micropython,tobbad/micropython,Timmenem/micropython,PappaPeppar/micropython,SHA2017-badge/micropython-esp32,lowRISC/micropython,dmazzella/micropython,micropython/micropython-esp32,turbinenreiter/micropython,HenrikSolver/micropython,hosaka/micropython,redbear/micropython,swegener/micropython,turbinenreiter/micropython,mpalomer/micropython,MrSurly/micropython-esp32,jmarcelino/pycom-micropython,ryannathans/micropython,matthewelse/micropython,tralamazza/micropython,PappaPeppar/micropython,tralamazza/micropython,ryannathans/micropython,chrisdearman/micropython,selste/micropython,trezor/micropython,dinau/micropython,torwag/micropython,bvernoux/micropython,mhoffma/micropython,pozetroninc/micropython,tuc-osg/micropython,jmarcelino/pycom-micropython,tralamazza/micropython,pramasoul/micropython,mhoffma/micropython,alex-march/micropython,deshipu/micropython,kerneltask/micropython,lowRISC/micropython,pramasoul/micropython,tobbad/micropython,emfcamp/micropython,tralamazza/micropython,alex-march/micropython,henriknelson/micropython,TDAbboud/micropython,alex-robbins/micropython,toolmacher/micropython,drrk/micropython,oopy/micropython,selste/micropython,turbinenreiter/micropython,tuc-osg/micropython,swegener/micropython,alex-robbins/micropython,Peetz0r/micropython-esp32,torwag/micropython,praemdonck/micropython,praemdonck/micropython,torwag/micropython,jmarcelino/pycom-micropython,blazewicz/micropython,toolmacher/micropython,SHA2017-badge/micropython-esp32,AriZuu/micropython,mpalomer/micropython,tuc-osg/micropython,ganshun666/micropython,alex-robbins/micropython,emfcamp/micropython,redbear/micropython,adafruit/circuitpython,puuu/micropython,alex-march/micropython,infinnovation/micropython,HenrikSolver/micropython,cwyark/micropython,AriZuu/micropython,AriZuu/micropython,hosaka/micropython,pramasoul/micropython,pfalcon/micropython,alex-march/micropython,Peetz0r/micropython-esp32,hiway/micropython,MrSurly/micropython,pramasoul/micropython,ryannathans/micropython,mpalomer/micropython,adafruit/micropython,blazewicz/micropython,deshipu/micropython,emfcamp/micropython,emfcamp/micropython,drrk/micropython,trezor/micropython,adafruit/circuitpython,tobbad/micropython,dmazzella/micropython,henriknelson/micropython,adafruit/circuitpython,bvernoux/micropython,MrSurly/micropython-esp32,redbear/micropython,dmazzella/micropython,PappaPeppar/micropython,selste/micropython,puuu/micropython,adafruit/micropython,dxxb/micropython,Timmenem/micropython,hosaka/micropython,kerneltask/micropython,pozetroninc/micropython,torwag/micropython,pozetroninc/micropython,hiway/micropython,ganshun666/micropython,pfalcon/micropython,kerneltask/micropython,chrisdearman/micropython,cwyark/micropython,matthewelse/micropython,Peetz0r/micropython-esp32,SHA2017-badge/micropython-esp32,micropython/micropython-esp32,kerneltask/micropython,misterdanb/micropython,dinau/micropython,tobbad/micropython,dxxb/micropython,dxxb/micropython,adafruit/circuitpython,chrisdearman/micropython,misterdanb/micropython,MrSurly/micropython,oopy/micropython,drrk/micropython,hiway/micropython,hosaka/micropython,drrk/micropython,TDAbboud/micropython,tuc-osg/micropython,TDAbboud/micropython,swegener/micropython,infinnovation/micropython,kerneltask/micropython,praemdonck/micropython,infinnovation/micropython,micropython/micropython-esp32,puuu/micropython,puuu/micropython,chrisdearman/micropython,oopy/micropython,dxxb/micropython,MrSurly/micropython,alex-march/micropython,turbinenreiter/micropython,lowRISC/micropython,TDAbboud/micropython,praemdonck/micropython,MrSurly/micropython-esp32,praemdonck/micropython,pfalcon/micropython,selste/micropython,redbear/micropython,hiway/micropython,SHA2017-badge/micropython-esp32,oopy/micropython,misterdanb/micropython,micropython/micropython-esp32,swegener/micropython,Peetz0r/micropython-esp32,TDAbboud/micropython,cwyark/micropython,MrSurly/micropython-esp32,chrisdearman/micropython,emfcamp/micropython,MrSurly/micropython,matthewelse/micropython,ganshun666/micropython,adafruit/circuitpython,adafruit/circuitpython,dmazzella/micropython,adafruit/micropython,blazewicz/micropython,misterdanb/micropython,toolmacher/micropython,selste/micropython,henriknelson/micropython,micropython/micropython-esp32,misterdanb/micropython,drrk/micropython,pfalcon/micropython,mhoffma/micropython,redbear/micropython,tobbad/micropython,pfalcon/micropython,infinnovation/micropython,adafruit/micropython,mpalomer/micropython