Add "Build and 8-bit computer from Scratch"

Solves #415, which had two mistakes, like:
1) Not containing Proggramimg Language
2) Not having a link

Co-Authored-By: Rushil <[email protected]>
Co-Authored-By: Santiago Degetau <[email protected]>

Author: 3 people

README.md

@@ -420,6 +420,7 @@ _For more general information, see OSDev.org_
 
 * [**(any)**: _From NAND to Tetris: Building a Modern Computer From First Principles_](http://nand2tetris.org/)
 * [**Alloy**: _The Same-Origin Policy_](http://aosabook.org/en/500L/the-same-origin-policy.html)
+* [**C**: _Build an 8-bit computer from Scratch_](https://eater.net/8bit)
 * [**C**: _How to Write a Video Player in Less Than 1000 Lines_](http://dranger.com/ffmpeg/ffmpeg.html)
 * [**C**: _Learn how to write a hash table in C_](https://github.com/jamesroutley/write-a-hash-table)
 * [**C**: _The very basics of a terminal emulator_](https://www.uninformativ.de/blog/postings/2018-02-24/0/POSTING-en.html)