Bring getting-started documentation in line with best practices

[esantorella]

Motivation

Getting-started documentation should be as simple as possible but no simpler. See #2421 for context.

Have you read the Contributing Guidelines on pull requests?

Yes

Test Plan

• ran the example code to ensure it works
• built and ran the website locally and checked it looked okay
• previewed Markdown in Markdown viewer

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 99.98%. Comparing base (0455dc3) to head (401646d).

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #2425   +/-   ##
=======================================
  Coverage   99.98%   99.98%           
=======================================
  Files         189      189           
  Lines       16666    16666           
=======================================
  Hits        16664    16664           
  Misses          2        2           

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@esantorella merged this pull request in 8f9004c.