fix: docs indent

[PrettyWood]

Change Summary

Doesn't need a change file

Related issue number

closes #2439

Checklist

• Unit tests for the changes exist
• Tests pass on CI and coverage remains at 100%
• Documentation reflects the changes where applicable
• changes/<pull request or issue id>-<github username>.md file added describing change
  (see changes/README.md for details)

[codecov]

Codecov Report

Merging #2440 (ee75197) into master (a8d50ae) will not change coverage.
The diff coverage is n/a.

@@            Coverage Diff            @@
##            master     #2440   +/-   ##
=========================================
  Coverage   100.00%   100.00%           
=========================================
  Files           25        25           
  Lines         5080      5084    +4     
  Branches      1041      1042    +1     
=========================================
+ Hits          5080      5084    +4     

Impacted Files	Coverage Δ
pydantic/main.py	100.00% <0.00%> (ø)

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update a8d50ae...ee75197. Read the comment docs.

[samuelcolvin]

👍 👌