[bug] Two datasets(oecd_bli.csv, gdp_per_capita.csv) are odd.

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Chapter 1. The Machine Learning Landscape

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Describe your issue

As the title suggests, the two datasets (oecd_bli.csv and gdp_per_capita.csv) contain some inconsistencies.

First, the gdp_per_capita.csv file does not include data for Japan in the year 2020.
Second, the country names for Czech Republic, Korea, and Slovak Republic differ between the two files.

As a result, these four countries are missing from lifesat_full.csv.

Enter what you expected to happen

The datasets should be corrected by adding Japan’s 2020 data into gdp_per_capita.csv and standardizing the names of the three countries in both files.

If you found a workaround, describe it here

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