Add intentions slide
Move data and triggers to before MC/bkg
Rework lepton object slides

 - Combine muon/electron preselection into one slide
 - show lepton plots at a later stage, after final selection is
   discussed
Add paper-name to official plot
Merge branch 'maria_edits'

* maria_edits:
  Add paper-name to official plot
  Rework lepton object slides
  Move data and triggers to before MC/bkg
  Add intentions slide