updates to readme

README.md

 # Cancer Metastasis using CNNs and transfer learning
 
-#Links
+## Links
 Link to dataset: https://www.kaggle.com/c/histopathologic-cancer-detection/overview
 
 Dataset is also available at:
@@ -10,10 +10,10 @@ cluster.cs.earlham.edu/eccs/home/afarah18/488/markI/histopathologic-cancer-detec
 
 Link to paper: 
 
-#Software architecture diagram
+## Software architecture diagram
 ![Software architecture diagram](https://portfolios.cs.earlham.edu/wp-content/uploads/2021/03/Screen-Shot-2021-03-22-at-11.42.40-PM.png)
 
-#Files
+## Files
 
 basicCNN.py -> This file includes code for training a model with randomly initilized weights and biases
 
@@ -23,7 +23,7 @@ VGGLessData.py -> This file includes code for training VGG with transfer learnin
 
 validate.py -> This file includes code for validating the results of the three models
 
-#How to use
+## How to use
 After installing the dependencies each file can be run simply by using:
 ```bash
 python3 <filename>