adding gui link

README.md

@@ -39,7 +39,7 @@ Table of Contents
 
 ## Example notebooks
 
-Rastermap runs in python 3.8+ and has a graphical user interface (GUI) for running it easily. Rastermap can also be run in a jupyter notebook locally or on google colab, see these demos:
+Rastermap runs in python 3.8+ and has a [**graphical user interface (GUI)**](#gui) for running it easily. Rastermap can also be run in a jupyter notebook locally or on google colab, see these demos:
 * [rastermap_largescale.ipynb](notebooks/rastermap_largescale.ipynb) [![Open In Colab](https://colab.research.google.com/assets/colab-badge.svg)](https://colab.research.google.com/github/MouseLand/rastermap/blob/main/notebooks/rastermap_largescale.ipynb) shows how to use it with large-scale data from mouse cortex (> 200 neurons) 
 * [rastermap_singleneurons.ipynb](notebooks/rastermap_singleneurons.ipynb) [![Open In Colab](https://colab.research.google.com/assets/colab-badge.svg)](https://colab.research.google.com/github/MouseLand/rastermap/blob/main/notebooks/rastermap_singleneurons.ipynb) shows how to use it with small to medium sized data (< 200 neurons), in this case recorded from rat hippocampus 
 * [rastermap_zebrafish.ipynb](notebooks/rastermap_zebrafish.ipynb) [![Open In Colab](https://colab.research.google.com/assets/colab-badge.svg)](https://colab.research.google.com/github/MouseLand/rastermap/blob/main/notebooks/rastermap_zebrafish.ipynb) shows how to use it with large-scale data from zebrafish