Update presentations.md
Linked presentation
Fix typo
ESLint presentation added.
Merge pull request #42 from jukra/master

Update presentations.md
Merge pull request #43 from tariel/master

Linked presentation
Trivial quiz
Link to ESLint presentation added.
Merge pull request #41 from Oona/master

Added quiz about npm commands #25
Merge remote-tracking branch 'upstream/master'
No spaces between ] and (.
Merge pull request #45 from HeikkiAlanen/master

ESLint presentation added.