created chapter 1 dir
changed path to css styles
created chapter 2
created chapter 4
created chapter 5
added chapter 6
added chapter 8
created chapter 9
created chapter 10
creeatd chapter 11
created appendix a
created appendix b
created chapter 7
made code directory
fixes due to code directory
more changes for code directory
more fixes for code directory
deleted and moved .py files
Fixed book merge, and created new PDF
Organizing book into directories