Fix typos in Desert Race

Closes #17
Add German translation
Merge pull request #11 from taxifisch/master

Add German translation
Update CONTRIBUTING to mention WIP PRs
Remove Turkish folder temporarily to avoid confusion
Merge branch 'master' of github.com:CodeClub/scratch-curriculum
Remove trailing whitespace from Whack-a-witch de
Merge pull request #4 from wesleylancel/scratch-curriculum
Merge pull request #6 from Marrije/scratch-curriculum
Merge pull request #20 from thomasmattheussen/scratch-curriculum
Norwegian translation term 1

Bokmål
Fix typo in CONTRIBUTING
Merge pull request #22 from Helgenen/master

Norwegian translation term 1
Switch to all lang-country codes
Update code in contributing guide
Add build script
Fix URL in example pull request
Add build instructions to README
Update README
Merge branch 'master' of github.com:CodeClub/scratch-curriculum