adding sorting problem
expanding upon string
Merge branch 'feature/improvinf_part1' of https://github.com/bhameyie/SharpBeginnings into feature/improvinf_part1

* 'feature/improvinf_part1' of https://github.com/bhameyie/SharpBeginnings:
  Update README.md
  Update session3.md
  adding more items to be covered on session 3