Preparing first two lectures

Author: stegua

README.md

@@ -8,11 +8,9 @@ This repository is maintained by the [Computational Optimization Research Group]
 
 ## Python Notebooks
 
-Teaching.
-
 | Data | Notebook | Link |
 |:-|:-|:-|
-
+|**[2023/03/03]**|*Python in a Nutshell*|[![Open In Colab](https://colab.research.google.com/assets/colab-badge.svg)](https://colab.research.google.com/github/mathcoding/opt4ds/blob/master/notebooks/Python_in_a_Nutshell.ipynb)|
 
 ## Python scripts
 | Data | Script | Link |