[gsoc] Frequently asked questions

[Seb]

On Friday, 22 March 2019 at 10:25:04 UTC, Seb wrote:
> ---
> @students: Please make sure to read these three guides:
>
> [...]

And as we start to receive more proposal via email an additional 
reminder:

*Please* do _not_ send them to us via email, but submit your 
applications through the official Google Summer of Code platform:

https://summerofcode.withgoogle.com

We can only consider applications submitted through Google's 
platform.