New example to try pygmt on google colab.

[andrebelem]

Hello,

After the new update in Google Colab (March 2024), it's possible to run conda install() and conda gmt/pygmt. I've updated my script and I'm using it with my students. Feel free to integrate it into the try-gmt.

https://github.com/andrebelem/pythonverse/blob/main/Using_pygmt_in_COLAB_[version_2023].ipynb

[seisman]

I think we already have similar instructions in our demo notebook https://github.com/GenericMappingTools/try-gmt/blob/master/python-demo.ipynb.

[andrebelem]

I believe we should specifically label the example as "COLAB" to help users find it easily.ly.

[seisman]

In 6c2754a, I've added an example notebook for Google Colab.