Update README.md

2.Clustering/README.md

 # Data Mining (DM) course project - Part2. Clustering
 
-***Dataset link: [Unsupervised Learning on Country Data](https://www.kaggle.com/datasets/rohan0301/unsupervised-learning-on-country-data)***
+## Dataset
 
-> ***This folder contains a python file `constants.ipynb` containing some fixed values used in other files, refered as `CONSTANTS` class***
+***Link: [Unsupervised Learning on Country Data](https://www.kaggle.com/datasets/rohan0301/unsupervised-learning-on-country-data)***
 
-## Contents
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+### Dataset dictionary
+
+| Column Name | Description                                                                                                      |
+| ----------- | ---------------------------------------------------------------------------------------------------------------- |
+| country     | Name of the country                                                                                              |
+| child_mort  | Death of children under 5 years of age per 1000 live births                                                      |
+| exports     | Exports of goods and services per capita. Given as %age of the GDP per capita                                    |
+| health      | Total health spending per capita. Given as %age of GDP per capita                                                |
+| imports     | Imports of goods and services per capita. Given as %age of the GDP per capita                                    |
+| Income      | Net income per person                                                                                            |
+| Inflation   | The measurement of the annual growth rate of the Total GDP                                                       |
+| life_expec  | The average number of years a new born child would live if the current mortality patterns are to remain the same |
+| total_fer   | The number of children that would be born to each woman if the current age-fertility rates remain the same.      |
+| gdpp        | The GDP per capita. Calculated as the Total GDP divided by the total population.                                 |
+
+## Contents
+
+> ***This folder contains a python file `constants.ipynb` containing some fixed values used in other files, refered as `CONSTANTS` class***
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