Add README for tests/.
Add README for tests/.

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