docs: update README.md

[amemya]

READMEを大幅に更新

[coderabbitai]

Warning

Review limit reached

@amemya, you've reached your PR review limit, so we couldn't start this review.

Next review available in: 53 minutes

Enable usage-based reviews in Billing to review now. Otherwise, wait until the next included review is available.
You're only billed for reviews past your plan's rate limits ($0.25/file).

How can I continue?

After more reviews become available, a review can be triggered using the @coderabbitai review command as a PR comment. Alternatively, push new commits to this PR.

To avoid repeated limits, reduce automatic review volume by pausing incremental auto-reviews earlier, using label-based review opt-in, excluding WIP or generated PR titles, or requesting reviews manually when the PR is ready. If your team needs uninterrupted high-volume reviews, an organization admin can enable usage-based reviews.

How do review limits work?

CodeRabbit enforces per-developer PR review limits for each organization. Most developers receive the normal plan review availability.

For paid Pro and Pro+ PR reviews, CodeRabbit uses adaptive limits for sustained high-volume activity. When a developer's recent PR review activity reaches the 95th percentile or higher among CodeRabbit users, additional reviews become available more gradually as earlier reviews age out of the rolling window.

Please refer docs for additional details.

Review details

⚙️ Run configuration

Configuration used: Organization UI

Review profile: ASSERTIVE

Plan: Pro Plus

Run ID: f44735b1-64d4-40db-8abb-70cfb551a04c

📥 Commits

Reviewing files that changed from the base of the PR and between f779ee8 and 60739ca.

📒 Files selected for processing (2)

• README.md
• README_ja.md

📝 Walkthrough

Walkthrough

README.mdとREADME_ja.mdの内容が更新されました。CI/Codecov/Release/Go/Wailsなどのバッジが追加され、機能説明が新構成（フレーム生成、メタデータ抽出、バッチ処理、フィルムデータ対応）に再編されました。ビルド手順もWails v2からv3へ、wails dev/wails buildからwails3 dev/wails3 buildへ変更されています。

Changes

README更新（英語・日本語）

Layer / File(s)	Summary
英語README更新 README.md	バッジ追加、Key Features・Setup & Build Instructions・Contributingセクションが刷新され、wails3 dev/wails3 buildへの手順変更を反映。
日本語README更新 README_ja.md	バッジ追加、主な機能と特徴・必要な環境とビルド方法・コントリビューションセクションが刷新され、Wails v3対応の手順に更新。

Estimated code review effort: 1 (Trivial) | ~5 minutes

Possibly related PRs

• amemya/ExifFrame#13: 両PRともREADME.md/README_ja.mdのドキュメント内容・構成のみを更新しており、コードレベルの変更を伴わない点で共通。

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Title check	✅ Passed	README.mdの更新内容を端的に示しており、変更対象と一致しています。
Description check	✅ Passed	READMEを大幅に更新したという説明は、実際の変更内容と関連しています。
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch docs/readme

---

Thanks for using CodeRabbit! It's free for OSS, and your support helps us grow. If you like it, consider giving us a shout-out.

❤️ Share

• X
• Mastodon
• Reddit
• LinkedIn

_{Comment @coderabbitai help to get the list of available commands.}

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.

📢 Thoughts on this report? Let us know!

[Copilot]

Pull request overview

This PR significantly refreshes the project documentation (English and Japanese) to better describe ExifFrame’s purpose, feature set, and updated Wails v3-based build workflow.

Changes:

• Add status/metadata badges (CI, code coverage, release, Go version, Wails, platform).
• Rewrite the app description and expand the feature list to focus on framed image generation + customization.
• Update prerequisites and commands to reflect the Wails v3 (wails3) build/development flow.

Reviewed changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated 3 comments.

File	Description
README.md	Adds badges, expands product/feature description, updates setup/build instructions for Wails v3.
README_ja.md	Mirrors the English README updates in Japanese, including badges and updated build prerequisites/commands.

---

💡 Add Copilot custom instructions for smarter, more guided reviews. Learn how to get started.

[coderabbitai]

Actionable comments posted: 2

🤖 Prompt for all review comments with AI agents

Verify each finding against current code. Fix only still-valid issues, skip the
rest with a brief reason, keep changes minimal, and validate.

Inline comments:
In `@README_ja.md`:
- Line 8: The Platform badge in the README currently uses an empty link target,
so either replace the empty parentheses with a valid destination or remove the
link wrapper entirely. Update the badge markdown near the Platform badge so it
no longer renders as a clickable dead link, keeping the badge itself intact if
it should remain visible.

In `@README.md`:
- Line 8: The Platform badge in the README uses an empty link target, so it
renders as a non-functional link. Update the badge markdown to either point to a
valid URL or remove the link wrapper entirely, keeping the badge text and image
intact.

🪄 Autofix (Beta)

Fix all unresolved CodeRabbit comments on this PR:

• Push a commit to this branch (recommended)
• Create a new PR with the fixes

---

ℹ️ Review info

⚙️ Run configuration

Configuration used: Organization UI

Review profile: ASSERTIVE

Plan: Pro Plus

Run ID: 8f7bf7c1-c79d-4dea-b6c8-c7d3117812cf

📥 Commits

Reviewing files that changed from the base of the PR and between 0f0982d and f779ee8.

📒 Files selected for processing (2)

• README.md
• README_ja.md