add new section to readme
clean up dev branch
update readme links
fix markdown
fix links
Merge branch 'dev' of github.com:Bergrebell/CyberCoach into dev

Conflicts:
	README.md
fix readme conflict
remove not used file
fix heroku related bugs
add points and update Gemfile.lock
add line: has_many :achievements to user model
test
test
test
Add some missing labels and placeholders, display units
sportsmate logo added
Merge branch 'dev' of https://github.com/Bergrebell/CyberCoach into dev
Merge branch 'dev' of github.com:Bergrebell/CyberCoach into dev
Add doc folder with
- Slides of first presentation
- Slides of final presentation, please adjust to your needs! Conclusion is missing though we can also freely speak this one. Link to final deployed app is also missing
add #all to a_user.achievements call and to a_user.sport_sessions call