Enhance README with Python bindings and visualisation details

[sebschmi]

Add Python bindings section and update visualisation instructions

[Copilot]

Pull request overview

This PR updates the project README to surface the existence of PyPI-hosted Python bindings and to refine the alignment visualisation instructions, focusing on SVG/PNG outputs.

Changes:

• Add PyPI badges and a short “Python bindings” installation section.
• Update the visualisation documentation and CLI examples for generating SVG/PNG output.
• Reformat the “embedded rq ranges” example to use a dedicated shell code block.

Comments suppressed due to low confidence (2)

README.md:136

• For -z, the placeholder is inconsistent (-z X but the description refers to x), and “TSM(s)” is not defined anywhere else in the README. Consider using a consistent placeholder (e.g., -z N) and expanding the acronym (e.g., “template switches”).

* `-z X` renders only `x` bases of context around the TSMs

README.md:139

• The example uses combined short options (-ps visualisation.svg) while earlier examples use -p -s visualisation.svg. Even if -ps parses, using the same style throughout the README would reduce ambiguity (especially since -s takes a value).

tsalign show -i alignment.toml -n alignment-no-ts.toml -ps visualisation.svg -ace -z 5

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