add more explanation about reinstall logic on the website docs
add more explanation about reinstall logic on the website docs

fhchina/boxstarter,napramirez/boxstarter,mwrock/boxstarter,napramirez/boxstarter,modulexcite/boxstarter,dex1on/pub,modulexcite/boxstarter,dex1on/pub,dhilgarth/boxstarter,cam1985/boxstarter,dex1on/pub,mwrock/boxstarter,fhchina/boxstarter,fhchina/boxstarter,smaglio81/boxstarter,smaglio81/boxstarter,tbyehl/boxstarter,cam1985/boxstarter,dhilgarth/boxstarter,modulexcite/boxstarter,dhilgarth/boxstarter,cam1985/boxstarter,smaglio81/boxstarter,tbyehl/boxstarter,napramirez/boxstarter,tbyehl/boxstarter