add svg example to visualizations

[sky1ove]

use the homepage format

[Isaac-Flath]

Tweaks made made:

Seaborn added to requirements

Make slide effect number of columns in heatmap, to make it more clear it's dynamically changing the plot and not just resizing a static plot.

Simplify example by removing some plot labels.

Add a couple comments

[Isaac-Flath]

Thank you so much!

[sky1ove]

Thanks for the edits!