docs: improve clarity in guide documentation

[Copilot]

Rewrote sentences in 5 English documentation files to sound more natural and professional without changing technical meaning.

Changes by file

• guide/start/index.mdx: Simplified comparisons ("on par with" → "comparable to"), fixed hyphenation ("blazing fast" → "blazing-fast"), applied sentence case to feature headings
• guide/start/quick-start.mdx: Streamlined terminology ("npm dependencies" → "dependencies", "development server" → "dev server"), made CLI descriptions more concise
• guide/advanced/browser-compatibility.mdx: Replaced awkward constructions ("lower-version browsers" → "older browsers"), tightened technical explanations in syntax transpilation and API polyfill sections
• guide/basic/html-template.mdx: Improved phrasing ("on route changes" → "when routes change", "build process" → "build")
• guide/faq/general.mdx: Fixed parallel structure in comparative descriptions

Example change

- Rsbuild is a build tool on par with Vite, Create React App, and Vue CLI.
- All come with built-in dev servers, command line tools, and sensible build
- configurations for an out-of-the-box experience.
+ Rsbuild is comparable to build tools like Vite, Create React App, and Vue CLI.
+ All include built-in dev servers, command line tools, and sensible build
+ configurations for an out-of-the-box experience.

All changes preserve original technical accuracy while improving readability for both native and non-native English speakers.

Original prompt

Improve the English docs in website/docs/en. Many paragraphs were
translated from Chinese and may sound unnatural.

  Rewrite sentences that don't read like authentic, professional English —
  **without changing their meaning** — so they match the tone of
  high-quality open-source docs.


  - **IMPORTANT:** Only change a sentence if it clearly improves clarity or
  correctness.

  - **IMPORTANT:** Don't alter the original meaning.

  - If you edit files in `docs/en`, check the same files in `docs/zh` to see
  if similar updates are needed.

  - Use clear, simple language for non-native English readers.

  - Keep reasonable technical abbreviations (e.g., `dev server`).

  - Use sentence case for Markdown headings.

  - Don't change more than 5 files in one PR.

  - Start PR titles with `docs:`.

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✅ chenjiahan
❌ Copilot
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[Copilot]

Pull Request Overview

This PR refines the English documentation to improve clarity, conciseness, and consistency throughout the guide. The changes are primarily editorial, focusing on more natural phrasing and clearer technical communication.

Key changes:

• Simplified and shortened phrases for better readability (e.g., "npm dependencies" → "dependencies", "various higher-level tools" → "higher-level tools")
• Improved consistency in terminology (e.g., "dev server" throughout instead of "development server")
• Enhanced clarity in technical explanations (e.g., rephrasing comparisons and feature descriptions)

Reviewed Changes

Copilot reviewed 5 out of 5 changed files in this pull request and generated no comments.

Show a summary per file

File	Description
website/docs/en/guide/start/quick-start.mdx	Streamlined setup instructions and template descriptions for brevity
website/docs/en/guide/start/index.mdx	Improved phrasing in introduction, comparisons, and feature descriptions
website/docs/en/guide/faq/general.mdx	Minor grammar improvements for better flow
website/docs/en/guide/basic/html-template.mdx	Clarified template engine and configuration descriptions
website/docs/en/guide/advanced/browser-compatibility.mdx	Enhanced technical explanations for syntax and API compatibility

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