Update code example and link NuGet package

[worldbeater]

What kind of change does this PR introduce? (Bug fix, feature, docs update, ...)

README.md update.

What is the current behavior? (You can also link to an open issue here)

Example code snippet is a bit outdated, plus, there is no link to NuGet package.

What is the new behavior (if this is a feature change)?

Code snippet is updated and compiles now, link to NuGet added.

What might this PR break?

Nothing.

[codecov]

Codecov Report

Merging #2 into master will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master       #2   +/-   ##
=======================================
  Coverage   26.56%   26.56%           
=======================================
  Files          13       13           
  Lines         527      527           
  Branches       55       55           
=======================================
  Hits          140      140           
  Misses        384      384           
  Partials        3        3

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[lock]

This thread has been automatically locked since there has not been any recent activity after it was closed. Please open a new issue for related bugs.