Google Colab Links in docs are dead 💀

[davidwyld]

On examples page, the following links to colab noteboks are dead:

• https://colab.research.google.com/drive/1N1mxOy2oX7bEGtPy7Ztshrs4Fs_7lBpV?usp=sharing
• https://colab.research.google.com/drive/1BOzTyBjpCbAJ6PMJi0GS55shuaMu72h5?usp=sharing
• https://colab.research.google.com/drive/1atTQFk4eK_SKImHofmEXIfoN9oAP1cJb?usp=sharing