Fixed chaptering, added new chapter.

Signed-off-by: Antonio Krog <antonio.krog@sartura.hr>
Added another chapter and its sections

Signed-off-by: Antonio Krog <antonio.krog@sartura.hr>
Added the final chapter and its sections

Signed-off-by: Antonio Krog <antonio.krog@sartura.hr>
Added references to chapters and sections

Signed-off-by: Antonio Krog <antonio.krog@sartura.hr>
Added references to chapters and sections

Signed-off-by: Antonio Krog <antonio.krog@sartura.hr>
Fixed typos and style

Signed-off-by: Antonio Krog <antonio.krog@sartura.hr>