feat: Added portuguese entry in VOCAB

[fmobrj]

PR for portuguese entry in Vocab.

[codecov]

Codecov Report

Merging #464 (b2722d7) into main (bcd9f9e) will decrease coverage by 0.08%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##             main     #464      +/-   ##
==========================================
- Coverage   95.85%   95.76%   -0.09%     
==========================================
  Files          96       95       -1     
  Lines        3952     3993      +41     
==========================================
+ Hits         3788     3824      +36     
- Misses        164      169       +5     

Flag	Coverage Δ
unittests	95.76% <ø> (-0.09%)	⬇️

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

Impacted Files	Coverage Δ
doctr/datasets/vocabs.py	100.00% <ø> (ø)
doctr/models/_utils.py	91.46% <0.00%> (-1.65%)	⬇️
doctr/utils/geometry.py	98.68% <0.00%> (-1.32%)	⬇️
...dels/detection/differentiable_binarization/base.py	91.35% <0.00%> (-0.62%)	⬇️
doctr/models/core.py	93.84% <0.00%> (-0.28%)	⬇️
doctr/__init__.py	100.00% <0.00%> (ø)
doctr/models/__init__.py	100.00% <0.00%> (ø)
doctr/transforms/functional/pytorch.py	100.00% <0.00%> (ø)
doctr/transforms/functional/tensorflow.py	100.00% <0.00%> (ø)
doctr/models/export.py
... and 3 more

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[fg-mindee]

Thanks a lot for the PR 🙏
I added one comment about the vocab, let me know what you think!

[fg-mindee]

Looks good to me thanks!
I'll fix the flake8 check later on 👌