changes so that Nuget is happy again

updated release notes

updated StateMachine to netstandard2.0 due to security vulnerabilities

added information about extensions in migration documentation

added documentation for migration to V 5

Deadlock repo added

Merge pull request #59 from appccelerate/move_docu

added example state machine to documentation

Added sample to readme.md

better naming of variables in tutorial

added tutorial

added overview to readme.md

Update README.md

updated release notes

Merge pull request #54 from wtjerry/feature/moveAllStateToStateContainer