Fixed section animations, inserted section slides and PSA
added the box model for lab work in the second day
Added some slides and tidying up headings and chapters
Fleshing out with some links here
Consider this the boiler plate or solution...
Merge branch 'topic_lab' into topic_hicollegegit
Added a lab repo and included Naim's lab boilerplate
Fixed youtube links/embed and some chapter slides
Cleaned up definitions and added regarding ultimate goal