Docs: Update reference to "Concepts guides".

[technically-tracy]

Summary

Docs: Update reference to "Concepts guides".

Requirements (place an x in each [ ])

• I've read and understood the Contributing Guidelines and have done my best effort to follow them.
• I've read and agree to the Code of Conduct.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 92.59%. Comparing base (e933bef) to head (fb1b36b).
Report is 1 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #2446   +/-   ##
=======================================
  Coverage   92.59%   92.59%           
=======================================
  Files          36       36           
  Lines        7472     7472           
  Branches      653      653           
=======================================
  Hits         6919     6919           
  Misses        545      545           
  Partials        8        8           

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