Update zad2.md
Merge remote-tracking branch 'nosql/master'
Update zad2.md
Update zad2.md
added images
Update zad2.md
Update zad2.md
Update zad2.md
added image
Update zad2.md
Update zad2.md
added image
Update zad2.md
Merge remote-tracking branch 'nosql/master'
Merge branch 'master' of https://github.com/miotla007/aggregations-2
Update README.md
Merge pull request #204 from miotla007/master

Uaktualniłem zadanie 2