Overhaul CMA05-5 and add link to 6.24 in CMA05-6

Overhaul:

check *x* *y* *n* *r* *C* *M* *N* *A* *B* *L* *P* *Q* *R* *S* *U*
Add Chapter 6 in Next & Processes and Appendix to Nav
new norm in navigation
trade ' in nav &#8217;
look at ref in exercises
Add text roman to all lists
Check for chapter §5, 6 and appendix links
Check refs in chapter 2
Save as you go