(2) Update README.md

2.Clustering/README.md

@@ -4,6 +4,9 @@
 
 ***Link: [Unsupervised Learning on Country Data](https://www.kaggle.com/datasets/rohan0301/unsupervised-learning-on-country-data)***
 
+### Objective:
+To categorise the countries using socio-economic and health factors that determine the overall development of the country.
+
 ### Dataset dictionary
 
 | Column Name | Description                                                                                                      |
@@ -21,4 +24,16 @@
 
 ## Contents
 
+1. Dataset overview
+1. Feature engineering
+1. Data preprocessing
+1. Dimensionality reduction using:
+    - Manual approach depending on data analysis
+    - PCA
+1. Clustering using K-Means
+1. Clusters modeling
+    - 3D views
+    - Boxplots showing data distribution
+    - Real-world maps
+
 > ***This folder contains a python file `constants.ipynb` containing some fixed values used in other files, refered as `CONSTANTS` class***
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