Fix mislabeled Recall row in evaluation summary and typos in Lab 8.3

[Yassir-249]

Fixes an output bug plus documentation/typo issues in course_8/gdm_lab_8_3_classification_part_2.ipynb.

Evaluation summary table prints "Precision" twice. In the metrics worked example, the summary block labels its third row Precision but prints the recall values:

Accuracy             87.50%        83.75%        85.00%
Precision            88.71%        88.24%        86.32%
Precision            87.50%        83.75%        85.00%   <- recall values

Changed the second label to Recall.

Documentation fixes.

• A sentence in "Interpreting the quantitative metrics results" ends mid-thought: "…or applying regularization to prevent" → completed with "overfitting."
• The "Load and display predictions" worked example loads predictions_val.csv but titles it "Test data classication" → "Validation data classification".
• The metrics intro says predictions are compared with the ground-truth prompt column; the ground-truth column is output.
• generate_all_predictions's docstring documented a non-existent instruction parameter and omitted model; aligned it with the signature.

Typos: catergorize, verifcation, notebook,you, Adpapt, simiarly, complimentary, somehwhere, progressivly.

Ran the worked-example pipeline end-to-end to confirm the fixes.

[Yassir-249]

Resolved on main — the Recall row in the evaluation summary is labelled correctly now. Closing, thanks!