finish 02-clean-code lecture
Added all text to md
Added all schemes
Removed redundant spaces
Merge pull request #27 from Ruszrok/master

Added XP text with images
Merge pull request #31 from Ruszrok/10-data-access-awesome-branch

Added Data Access with schemes
Merge pull request #23 from AoD314/master

finish 02-clean-code lecture
Added syntax highlight. Fixed style issues
removed redundant spaces
Merge pull request #32 from Ruszrok/10-data-access-awesome-branch

Added syntax highlight. Fixed style issues.