Github issue里MVP和Stretch label的区别

Github issue里，大家往往可以看到有issue被加上了这两种label，且这两种label是互斥的。这里介绍其区别：

anything marked MVP is what we want to get done in first iteration of the feature, however, that doesn’t exactly have to match with code that is finished and released (merged to develop and it gets into a new minor)

anything marked stretch should be done last, meaning stretch tickets live in stretch column