[Docs] Fix invalid values in metafiles

[MeowZheng]

No description provided.

[codecov]

Codecov Report

Merging #49 (bfee179) into master (37c82c2) will decrease coverage by 0.21%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master      #49      +/-   ##
==========================================
- Coverage   65.48%   65.27%   -0.22%     
==========================================
  Files          82       82              
  Lines        4711     4711              
  Branches      677      677              
==========================================
- Hits         3085     3075      -10     
- Misses       1529     1539      +10     
  Partials       97       97              

Flag	Coverage Δ
unittests	65.27% <ø> (-0.22%)	⬇️

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Impacted Files	Coverage Δ
mmflow/datasets/pipelines/transforms.py	77.50% <0.00%> (-1.67%)	⬇️

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