DOC: Minor indentation issue

[saurav2608]

• closes - No Issue available.
• tests added / passed
• passes git diff upstream/master -u -- "*.py" | flake8 --diff
• whatsnew entry

[codecov]

Codecov Report

Merging #24339 into master will decrease coverage by <.01%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master   #24339      +/-   ##
==========================================
- Coverage   92.28%   92.28%   -0.01%     
==========================================
  Files         162      162              
  Lines       51835    51835              
==========================================
- Hits        47835    47834       -1     
- Misses       4000     4001       +1

Flag	Coverage Δ
#multiple	90.68% <ø> (ø)	⬆️
#single	43% <ø> (ø)	⬆️

Impacted Files	Coverage Δ
pandas/util/testing.py	87.48% <0%> (-0.1%)	⬇️

---

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[codecov]

Codecov Report

Merging #24339 into master will decrease coverage by <.01%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master   #24339      +/-   ##
==========================================
- Coverage   92.28%   92.28%   -0.01%     
==========================================
  Files         162      162              
  Lines       51835    51835              
==========================================
- Hits        47835    47834       -1     
- Misses       4000     4001       +1

Flag	Coverage Δ
#multiple	90.68% <ø> (ø)	⬆️
#single	43% <ø> (ø)	⬆️

Impacted Files	Coverage Δ
pandas/util/testing.py	87.48% <0%> (-0.1%)	⬇️

---

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 2b5058e...ac5b9d4. Read the comment docs.

[codecov]

Codecov Report

Merging #24339 into master will decrease coverage by <.01%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master   #24339      +/-   ##
==========================================
- Coverage   92.28%   92.28%   -0.01%     
==========================================
  Files         162      162              
  Lines       51835    51835              
==========================================
- Hits        47835    47834       -1     
- Misses       4000     4001       +1

Flag	Coverage Δ
#multiple	90.68% <ø> (ø)	⬆️
#single	43% <ø> (ø)	⬆️

Impacted Files	Coverage Δ
pandas/util/testing.py	87.48% <0%> (-0.1%)	⬇️

---

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 2b5058e...ac5b9d4. Read the comment docs.

[TomAugspurger]

Thanks!