Add LinqSamples83
Add some comments
fix #33

* task/#33:
  Add some comments
  Add LinqSamples83
Add LinqSamples84
Add some comments
fix #34

* task/#34:
  Add some comments
  Add LinqSamples84
Add LinqSamples85
Add some comments
Merge branch 'feature/#40' into develop

* feature/#40:
  Add some comments
  Add LinqSamples85
fix #40