Take Aways:

1. std::string_view: manipulation of strings without the costs of ownership:
	i. copying and storing large string objects
   implemented as an type storing the first element and lenght of string 
   see  [link](https://stackoverflow.com/questions/20803826/what-is-string-view)

2. Explain sync pattern or idiom in relation to string_view
3. clang-tidy static checking -how does it work?