Updated full_eval.ipynb & corrected to constructor

[Neilblaze]

What does this PR do?

• In linen_intro (both .md & .ipynb), the _contructor arguments_ has been updated to _constructor arguments_ under Invoking Modules.

• Corrected assigning → correc = correct.item() to correct = correct.item() in full_eval.

• Moreover, a few typos and grammatical errors were discovered and have been corrected.

/cc: @cgarciae, @chiamp
✅ Properly synced using the pre-commit →  

Checklist

• This PR fixes a minor issue (e.g.: typo or small bug) or improves the docs (you can dismiss the other
  checks if that's the case).
• The documentation and docstrings adhere to the
  documentation guidelines.

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Codecov Report

Merging #3059 (2a1bef4) into main (b3945f8) will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##             main    #3059   +/-   ##
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  Coverage   81.97%   81.97%           
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  Files          55       55           
  Lines        6031     6031           
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  Hits         4944     4944           
  Misses       1087     1087           

[cgarciae]

Thanks @Neilblaze, looks good!