Polish README strategic section copy for clarity and consistency

[Copilot]

The issue asks to continue improving the PR #12 README update around Briefly’s strategic assessment and roadmap content. This change tightens wording and presentation in that section so the document reads cleaner and is easier to scan.

• Documentation quality fixes

  • Corrected a grammar error in the AI Studio feature flow text:
    • attempts to selects preferred model → attempts to select preferred model
  • Standardized table header capitalization:
    • info → Info

• Scope

  • No functional extension behavior was changed.
  • No roadmap items were redefined; this is a precision pass on the existing strategic README content.

-| **Summarise in AI Studio** | ... attempts to selects preferred model ...
+| **Summarise in AI Studio** | ... attempts to select preferred model ...

-| Feature | info |
+| Feature | Info |

Original prompt

Pull request: https://github.com/labib2002/Briefly/pull/12/files

start working on the improvements. do every single one fully every single one. start immediately. finish every single change and improvement and task. from here (

Briefly ⚡️

Summarize YouTube videos instantly — right from your browser.

Skip the video, keep the value. With one right-click or through the extension popup, Briefly pulls the transcript for the current YouTube video. It can copy the transcript to your clipboard or auto-summarize it using Google’s Gemini in AI Studio. Perfect for research, note-taking, or just staying informed — without the watch time.

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Features

Action	What happens
Get & Copy Transcript	Uses a bundled JavaScript library (based on youtube-transcript-api) directly in the extension → fetches the full transcript (with preferred language logic) → copies it to your clipboard via Chrome’s Offscreen API.
Summarise in AI Studio	Same transcript fetching method → opens aistudio.google.com → pastes a pre-defined prompt + transcript → attempts to selects preferred model → disables/enables preferred “Thinking mode” → clicks Run.

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Feature	info
Popup Interface	Access core actions (copy, summarize) for the active YouTube tab directly from the extension icon.
Robust notifications	API / network / automation errors bubble up clearly.
Cross-platform	works on Chrome, Edge, Brave, etc. (Manifest v3).

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Quick Start

1 ▪ Clone

git clone https://github.com/labib2002/briefly.git
cd briefly

2 ▪ Load the extension

1. Open chrome://extensions (or the equivalent for your browser, e.g., edge://extensions).
2. Turn on Developer mode.
3. Click Load unpacked → select the briefly project folder (the one containing manifest.json).

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Usage

1. Navigate to a YouTube video page (youtube.com/watch?..., youtu.be/..., youtube.com/shorts/...).
2. Option 1: Context Menu
   • Right-click any YouTube video link on a webpage.
   • Choose:
     • Briefly: Get & Copy Transcript Text
     • Briefly: Automate Summary in AI Studio
3. Option 2: Extension Popup
   • While on a YouTube video page, click the Briefly extension icon in your browser toolbar.
   • Click either Copy Transcript or Summarize in AI Studio.
4. Read the notification that appears. If you picked AI Studio, switch to the new tab and watch Gemini work its magic.

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Configuration

File	What to tweak
background.js	PREFERRED_LANGUAGES array, promptText template for AI Studio, AI Studio automation time-outs.
content_script_aistudio.js	CSS selectors for AI Studio elements & default model name string (e.g., "Gemini 2.5 Flash Preview").

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Troubleshooting 🛠️

Symptom	Likely cause / fix
Transcript unavailable / error fetching transcript	Uploader disabled transcripts, no transcripts in your PREFERRED_LANGUAGES (see background.js), or a temporary YouTube issue. Check the Service Worker console.
Automation stalls or fails in AI Studio	Google’s AI Studio UI might have changed – adjust selectors in content_script_aistudio.js. Use DevTools console in the AI Studio tab to inspect errors. The target model ("Gemini 2.5 Flash Preview") might also be unavailable or renamed.
Clipboard error	Rare; open the extension’s Service worker console in chrome://extensions for details.
Buttons in popup are disabled	Ensure you are on an active YouTube video page (youtube.com/watch, youtu.be, youtube.com/shorts).

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• Service worker logs (for background tasks, transcript fetching) → chrome://extensions → find Briefly → click Service worker.
• Content-script logs (for AI Studio automation) → Open DevTools (F12) console in the AI Studio tab.
• Popup logs (for popup UI issues) → Right-click the extension icon → Inspect popup → Console tab.

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Strategic Assessment & Roadmap / Future Ideas

Strategic Assessment (2026)

Is Briefly still useful after YouTube...

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