Fix formatting

Author: gjbex

hands-on/README.md

@@ -4,5 +4,4 @@ Here you find some notebooks that can be used during the training session
 to follow along, or for hands-on sessions.
 
 ## What is it?
-  1.  [![Open In Colab](https://colab.research.google.com/assets/colab-badge.svg)](https://colab.research.google.com/github/gjbex/Python-for-data-science/blob/master/hands-on/patient_data.ipynb) [`patient_data.ipynb`](patient_data.ipynb):      
-       illustrates using pandas for data analysis and seaborn for visualizations.
+  1.  [![Open In Colab](https://colab.research.google.com/assets/colab-badge.svg)](https://colab.research.google.com/github/gjbex/Python-for-data-science/blob/master/hands-on/patient_data.ipynb) [`patient_data.ipynb`](patient_data.ipynb): illustrates using pandas for data analysis and seaborn for visualizations.