many slides
Put all slides in one folder
temp commit
line endings fix
Merge branch 'master' of https://github.com/kontur-edu/uLearn

Conflicts:
	src/courses/BasicProgramming/BasicProgramming.csproj
	src/courses/BasicProgramming/Slides/S06-operations .cs
	src/courses/BasicProgramming/Slides/Unit1-Hello world/S01-HelloWorld.cs
	src/courses/BasicProgramming/Slides/Unit1-Hello world/S06-Operations .cs
	src/courses/BasicProgramming/Slides/Unit1-Hello world/S06-operations .cs
Correct my commit and add title