Fix typo

[davidbrochart]

Type of changes

• Bug fix
• New feature
• Documentation / docstrings
• Tests
• Other

Checklist

• I've run the latest black with default args on new code.
• I've updated CHANGELOG.md and CONTRIBUTORS.md where appropriate.
• I've added tests for new code.
• I accept that @willmcgugan may be pedantic in the code review.

Description

Changed docstring according to code.

[codecov]

Codecov Report

Merging #1147 (49d0e0e) into master (f24b668) will decrease coverage by 0.01%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master    #1147      +/-   ##
==========================================
- Coverage   99.84%   99.82%   -0.02%     
==========================================
  Files          69       69              
  Lines        6322     6331       +9     
==========================================
+ Hits         6312     6320       +8     
- Misses         10       11       +1     

Flag	Coverage Δ
unittests	99.82% <ø> (-0.02%)	⬇️

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
rich/live.py	100.00% <ø> (ø)
rich/progress.py	97.80% <0.00%> (-0.24%)	⬇️
rich/console.py	100.00% <0.00%> (ø)
rich/control.py	100.00% <0.00%> (ø)
rich/live_render.py	100.00% <0.00%> (ø)

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[willmcgugan]

Thanks