以下这些文件在英文版有但是中文版没有，希望check 并添加
oo-design.md
synthetic-regression-data.md
generalization.ipynb
weight-decay.ipynb
classification.ipynb
generalization-classification.ipynb
environment-and-distribution-shift.ipynb
以下这些文件在英文版有但是中文版没有，希望check 并添加
oo-design.md
synthetic-regression-data.md
generalization.ipynb
weight-decay.ipynb
classification.ipynb
generalization-classification.ipynb
environment-and-distribution-shift.ipynb