Adding docs about controlling http response status codes

[zhughes3]

References to other Issues or PRs

Adding notes to documentation after repeated discussion in #517 (comment)

Brief description of what is fixed or changed

Added documentation about controlling http response status codes.

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[zhughes3]

@googlebot I signed it!

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Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 54.14%. Comparing base (5f308a6) to head (321a5be).

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Additional details and impacted files

@@           Coverage Diff           @@
##           master    #1391   +/-   ##
=======================================
  Coverage   54.14%   54.14%           
=======================================
  Files          42       42           
  Lines        4375     4375           
=======================================
  Hits         2369     2369           
  Misses       1750     1750           
  Partials      256      256           

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[johanbrandhorst]

Hey, this looks great! Just a few nitpicky details:

• Could you unindent the code blocks to make it consistent with the rest of the file please?
• Looks like you've got too many tabs in the last snippet.

[johanbrandhorst]

@googlebot I signed it!

Try this without a quote

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[johanbrandhorst]

Thanks for your contribution! Could you please cherry pick this against v2?

[zhughes3]

@johanbrandhorst Of course! I am trying to cherry pick it into the v2 branch. If you can be patient, my git-fu is still amateur at best.