[Muos-tutorials] Updated tutorials

[Gregor B. <gre...@ho...>]

I'm glad to annouce that the MuOS tutorials has been updated!

Here's a list of what's new:
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Tutorial 1: Added "Set video mode" to get correct color output
Tutorial 1: Fixed a typo
Tutorial 2: Fixed a typo, source not modified
Tutoral 3 & 4: Makeboot updated to support more versions of gcc (Linux).

//Gregor