added word reference API key in the readme.md fixes #6
Merge pull request #16 from lewagon/wordref-apiuse-doc

added word reference API key in the readme.md fixes #6
hier
Typo
site
Add 300 / 400
Add open sans for 2 other exercises
Merge branch 'master' of https://github.com/lewagon/fullstack-challenges
hier
bunch of changes
fixing conflicts