Updated readme

README.md

 # cGAN-project
+This is the repository for the CGAN code from group 3:s project in TDDE19 2021.
 
+## Running the code
+1. Download the .ipynb file
+2. Upload the file in [google colab]{https://colab.research.google.com/}
+3. If you want the file to run on GPU: 
+- Click *Runtime -> Change runtime type* and select GPU as hardware accelerator.