[DOC] Improved Hidalgo Segmentation Notebook

[kavya-r30]

Reference Issues/PRs

Fixes #2615

What does this implement/fix? Explain your changes.

Improves Hidalgo Segmentation Notebook

Does your contribution introduce a new dependency? If yes, which one?

Any other comments?

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[MatthewMiddlehurst]

To keep this notebook I think we need a bit more information on what Hidalgo Segmentation is and why you would use it. Otherwise may be best to just remove.

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[kavya-r30]

I agree that providing more information on what Hidalgo Segmentation is and why it would be used is important, I have now added a detailed overview, including the algorithm's function, applications, and benefits and references

[MatthewMiddlehurst]

We have functions in the visualisation module that may be useful for this. For both plotting series and output. If those don't work thats ok but best to try.

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[MatthewMiddlehurst]

What is this plotting? It does not look like the series above.

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[kavya-r30]

Previously, the plot displayed the three channels offset by different values to show changes in segmentation of the same series. Now, I have used plot_series and plot_series_with_change_points from visualisation module to visualize the change points and input