finish full read through

[loftusa]

@ebridge2 adding this as 'medium priority'. I am interpreting that to mean "if there are any high-priority tasks, do those prior to continuing my readthrough, else do 1 hr read through 1 hr medium-priority task per day"

fix all spelling mistakes / sentence structure stuff / clean up code / remove x.y.z.zz stuff as I go

• [x] ch 1
• [x] ch 2
• [x] ch 3
• [x] ch 4
• [x] ch 5
• [x] ch 6
• [ ] ch 7
• [ ] ch 8
• [ ] ch 9
• [ ] appendix