adding labels to plot

[jensbri]

While I understand the beauty of having just 3 lines of code to ingest a dataset and output a heatmap, the resulting plot does not meet the basic requirements of an adequate plot. We shouldn't teach people to generate something 'data-sciency' that people can re-use without understanding what is to be seen on the plot.

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[ineelhere]

Thank you for your inputs. Please provide the output image too in order to reflect changes on the webpage. Thanks.

[jensbri]

Kia ora.

Please find the output image below:

[ineelhere]

Appreciate the screenshot, but this will not reflect on the tutorial content.

For the labels to show up on the image in the site, please also make changes to the file - episodes/fig/inflammation-01-imshow.svg in the .svg format and add changes to this same PR.

Thanks.