[cs13001] Required grade for CS2

[Mikhail Nesterenko]

> Dr Nesterenko, 
>  To continue to CS2 do we need a 70% or 73% final grade in CS1?

Good question. For sections 001-007, there will be no C- grade. To put
another way, students with 70 to 78% will be getting a C.

Thanks,
-- 
Mikhail