Corrections

[robi-y]

• Readme: remove "You start it by forking the repository" -> invitation + explain how to clone
• lab1: remove last gitconfig line: git config --global core.safecrlf true
  it gets us into trouble -> moved to "warn"
• lab3: cd git-tutrial -> cd <your url....
• lab26: file, than (remove comma)
• lab26: add explanation how to exit the vi screen
• lab 37: refine the hello folder issue name

[praveeno]

I'll make a PR request, but your help needed. :-)

[praveeno]

It's so hard for me to find right file for made correction, you should look into #38