Add dev slides
Merge branch 'master' of https://github.com/viteinfinite/xke-15minutes-with-cd

# By Gautier Mechling
# Via Gautier Mechling
* 'master' of https://github.com/viteinfinite/xke-15minutes-with-cd:
  Remove Trailing Whitespace
  Add first slides

Conflicts:
	slides.md
Minor edits