fix: Fixed portuguese entry in VOCAB

[fmobrj]

Refactored portuguese entry in VOCAB as suggested by @fg-mindee.

[codecov]

Codecov Report

Merging #571 (92a5bcb) into main (b149266) will not change coverage.
The diff coverage is 100.00%.

@@           Coverage Diff           @@
##             main     #571   +/-   ##
=======================================
  Coverage   96.06%   96.06%           
=======================================
  Files         109      109           
  Lines        4198     4198           
=======================================
  Hits         4033     4033           
  Misses        165      165           

Flag	Coverage Δ
unittests	96.06% <100.00%> (ø)

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Impacted Files	Coverage Δ
doctr/datasets/vocabs.py	100.00% <100.00%> (ø)

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[fg-mindee]

Thanks for the fix!

[fmobrj]

Thanks for the fix!

You are welcome.