Typo fix
Fixed typos in chapter 4

Signed-off-by: Alberto Corona <albcoron@gmail.com>
Fixed typos in main README and Chapter 4

Signed-off-by: Alberto Corona <albcoron@gmail.com>
Merge pull request #15 from 0x1A/master

Various typo fixes
Merge pull request #13 from Ocramius/patch-1

Typo fix
Fix #11
Remove elf file
Add more informations about managing the console screen
Add informations about Assembly interface
fix typo - floopy => floppy
Merge pull request #17 from meandavejustice/patch-1

fix typo - floopy => floppy
Divide chapter about IDT and GDT
Add base introduction to the GDT
Add infos about GDTR
Add link to chapter 6
Add infos about types
Add images for gdt chapter
Add structure for gdt segment
Refactor some comment in x86.cc
Translate some comments