Merge pull request #1 from dirkcuys/gh-pages

Signing up for the curse!
Merge pull request #2 from dirkcuys/gh-pages

Add link to example pull request
Update index.html
Renamed and updated posts
Fix templates and layout a bit
Change discussion link
Update instructions
Add some content from the social learning course
Add tools module
Add missing image
Update Markdown cheatsheet
Remove posts and banner include
Add outline to GitHub cheatsheet
Update course yml
Merge pull request #3 from mozzadrella/gh-pages

Update course yml
Merge pull request #1 from p2pu/gh-pages

Merging changes from upstream repository