diff --git a/README.md b/README.md
index 44ed29c..f2be8f0 100644
--- a/README.md
+++ b/README.md
@@ -275,7 +275,7 @@ jupyter notebook
 <br><br>
 
 
-#  I - [Intoductioon and Assessment](https://github.com/Quantum-Software-Development/specialized-consulting-data-mining/tree/86d9d9fbc56efdd0b8e377955c1c7abf8879b775/class_1-Introduction)
+##  I - [Intoductioon and Assessment](https://github.com/Quantum-Software-Development/specialized-consulting-data-mining/tree/86d9d9fbc56efdd0b8e377955c1c7abf8879b775/class_1-Introduction)
 
 <br>
 
@@ -293,7 +293,7 @@ jupyter notebook
 
 <br><br>
 
-# II - [class_2- Introduction - Data Mining With Python](https://github.com/Quantum-Software-Development/specialized-consulting-data-mining/tree/86d9d9fbc56efdd0b8e377955c1c7abf8879b775/class_2%20-%20Introduction%20-%20Data%20Mining%20With%20Python)
+## II - [class_2- Introduction - Data Mining With Python](https://github.com/Quantum-Software-Development/specialized-consulting-data-mining/tree/86d9d9fbc56efdd0b8e377955c1c7abf8879b775/class_2%20-%20Introduction%20-%20Data%20Mining%20With%20Python)
 
 <br>
 
@@ -665,17 +665,54 @@ Visualizations: Histograms, bar plots, and time series chart.
 
 # III - [class_3 - Stats Review](https://github.com/Quantum-Software-Development/specialized-consulting-data-mining/tree/86d9d9fbc56efdd0b8e377955c1c7abf8879b775/class_3%20-%20Stats%20Review)
 
+<br>
+
+> [!TIP]
+> 
+>
+> 
+
+
+<br><br>
+
+
+
+## IV - [class_4]()
+
+<br>
+
+> [!TIP]
+> 
+>
+> 
 
 
 
+<br><br>
 
 
+## V - [class_5- XXXXXXX]()
 
+<br>
 
+> [!TIP]
+> 
+>
+> 
 
 
+<br><br>
 
 
+## VI - [class_6- XXXXXX]()
+
+<br>
+
+> [!TIP]
+> 
+>
+> 
+