Convert kanin tutorials to new API

[oubiwann]

The tasks for this epic are actually contained in another repository:

• Update Ch1 to use the new API - Update Ch1 to use the new kanin API cnbbooks/kanin-tutorials#1
• Update Ch2 to use the new API - Update Ch2 to use the new API cnbbooks/kanin-tutorials#2
• Write Ch3 - Write Ch3 cnbbooks/kanin-tutorials#3
• Write Ch4 - Write Ch4 cnbbooks/kanin-tutorials#4
• Write Ch5 - Write Ch5 cnbbooks/kanin-tutorials#5
• Write Ch6 - Write Ch6 cnbbooks/kanin-tutorials#6
• Write Ch7 - Write Ch7 cnbbooks/kanin-tutorials#7
• Tutorial touch-ups and maintenance:
  • Update to use the latest Gitbook - Update to use the latest Gitbook cnbbooks/kanin-tutorials#9
  • Add Section to README explaining/crediting source - Add Section to README explaining/crediting source cnbbooks/kanin-tutorials#10
  • Add SUMMARY/ToC link to README - Add SUMMARY/ToC link to README cnbbooks/kanin-tutorials#11

Part of release v0.7.0