Transfert from paper to RTD

[frheault]

Benchmarks page summarizing the TRX format's performance evaluations across Python, Rust, C++, and JavaScript. It integrates the storage size comparisons, processing duration/throughput (Trellis) plots, and documents our unified, relay, compression, and edge-case testing methodologies.

The text is 90% from the Overleaf and slightly rephrased, but also extra information I had noted during development.
I removed most of the "overlapping" text from the overleaf, but when information is present in both, typically the Overleaf is more concise.

[Copilot]

Pull request overview

Note

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Adds a new Benchmarks section to the documentation and introduces a dedicated page describing the TRX benchmark suite, results visualizations, and interoperability testing methodology.

Changes:

• Adds a “Benchmarks” dropdown entry to the main docs index navigation.
• Introduces benchmarks.md with benchmark methodology, results figures, and availability links.

Reviewed changes

Copilot reviewed 2 out of 5 changed files in this pull request and generated 4 comments.

File	Description
source/index.md	Adds a new docs navigation dropdown linking to the Benchmarks page.
source/benchmarks.md	New documentation page detailing benchmark results, testing methodology, and technical observations.

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