Fix invalid import paths under "Getting Started"

[marcusirgens]

Updates the "Getting Started" code sample so that it will compile. Also adds a list of required dependencies, so users won't have to figure out the repository structure and how to find the dependencies in the sample.

I would also like to suggest that the maintainers find a way to perform regression tests against this code snippet, it's probably one of the most important pieces of code in the project.

Merge requirement checklist

• CONTRIBUTING guidelines followed

• Unit tests added/updated (if applicable)

• Appropriate CHANGELOG.md files updated for non-trivial, user-facing changes

  Unsure about this - this is not trivial, and also user-facing, but it might not be appropriate for the changelog.

• Changes in public API reviewed (if applicable)

  I guess this reviews a previous change in the public API?

[linux-foundation-easycla]

• ✅login: marcusirgens / (b7d45bd)

The committers listed above are authorized under a signed CLA.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 66.0%. Comparing base (98cd103) to head (b7d45bd).
Report is 3 commits behind head on main.

Additional details and impacted files

@@          Coverage Diff          @@
##            main   #1574   +/-   ##
=====================================
  Coverage   66.0%   66.0%           
=====================================
  Files        140     140           
  Lines      19537   19537           
=====================================
  Hits       12903   12903           
  Misses      6634    6634           

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[cijothomas]

Thanks. This is also related to #1306