Update README.md

README.md

@@ -166,7 +166,7 @@ To push the predictive power of our models beyond standard linear relationships,
 
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-### 🧩 Part 5: Unsupervised Learning (Clustering & PCA)
+### 🧩Unsupervised Learning (Clustering & PCA)
 
 To discover hidden market segments and feed them into our supervised model as highly predictive features, we applied unsupervised learning techniques.