add colab button for the notebook

README.md

@@ -21,7 +21,7 @@ model(smiles)
 >> A list of 4 tensors of (512,) shape
 ```
 
-For training a downstream model on the fingerprints see [`./notebooks/downstream_adaptation.ipnyb`](https://github.com/graphcore-research/minimol/blob/master/notebooks/downstream_adaptation.ipynb).
+For a Colab notebook showing how to use Minimol's fingerprints to achieve SoTA results on a downstream task, click here: [![Open In Colab](https://colab.research.google.com/assets/colab-badge.svg)](https://colab.research.google.com/graphcore-research/minimol/blob/main/notebooks/downstream_adaptation.ipynb)
 
 ## Installation
 
@@ -81,4 +81,4 @@ The model has been evaluated on 22 benchmarks from the ADMET group of [Therapeut
 
 Copyright (c) 2024 Graphcore Ltd. Licensed under the MIT License.
 
-The included code is released under the MIT license (see [details of the license](LICENSE)).
+The included code is released under the MIT license (see [details of the license](LICENSE)).