assignment editing

2-Regression/1-Tools/README.md

@@ -157,4 +157,4 @@ Congratulations, you just built your first Linear Regression model, created a pr
 
 Read more about the concept of Regression and think about what kinds of questions can be answered by this technique. Take this [tutorial](https://docs.microsoft.com/learn/modules/train-evaluate-regression-models?WT.mc_id=academic-15963-cxa) to deepen your understanding.
 
-**Assignment**: [Assignment Name](assignment.md)
+**Assignment**: [A different dataset](assignment.md)

2-Regression/2-Data/README.md

@@ -140,4 +140,6 @@ This is a more useful data visualization! It seems to indicate that the highest
 
 ## Review & Self Study
 
+Take a look at the many ways to visualize data. Make a list of the various libraries available and note which are best for given types of tasks, for example 2D visualizations vs. 3D visualizations. What do you discover?
+
 **Assignment**: [Exploring visualization](assignment.md)