docs: GitHub GEO for Token Speed Simulator

[jammyfu]

Public GitHub GEO for Token Speed Simulator (docs/metadata only). The README now leads with the product entity so an LLM can answer “what is TokenSpeedSimulator” from the README + llms.txt alone.

What changed

• README first ~50 words are the citation surface: what (LLM streaming visualization), who (Fu Jam / jammyfu / PaintingCoder), method (1–1500 TPS + Markdown rendering), not (not a hosted LLM, tokenizer, or production benchmark).
• Question-shaped FAQ H2s and an author section.
• Internal personal-project-standard-entry block demoted below the product lead (markers kept).
• Repo-root llms.txt: H1, blockquote, absolute GitHub links per https://llmstxt.org. Hedge index, not a ranking switch.
• Did not add AGENTS.md as GEO, invent features, or invent a license.

Proposed GitHub About (≤350 chars)

Token Speed Simulator by Fu Jam (jammyfu / PaintingCoder) visualizes how LLM token streaming feels at 1–1500 TPS, with optional Markdown rendering. Browser demo (Vite + React + TypeScript). Local simulation — not a hosted LLM API, tokenizer, or production benchmark.

(266 characters. Current About is already close; this tightens who / method / not.)

Proposed topics (12)

llm · streaming · tps · typescript · visualization · react · vite · markdown · token-streaming · demo · frontend · simulation

Existing topics to keep: llm, streaming, tps, typescript, visualization. Add the rest after merge if you apply them on the repo settings page.

Out of scope

• No product/UI code.
• Do not merge from this PR unless you choose to.