KaitoMuraoka/feature/docからプルリクエスト#15をマージする

Add Document

PasswordBox/Info.plist

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+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>BGTaskSchedulerPermittedIdentifiers</key>
+	<array/>
+</dict>
+</plist>

README.md

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-# 🔑Password Box
+# 🔐Password Box
 
 Password Box is an iOS app designed to store passwords that cannot be managed by conventional password management tools like iCloud Keychain. It addresses the need to securely store a variety of real-world passcodes that typical password managers can’t handle, such as computer passcodes for different operating systems at the office, bike lock combinations, and more.
 
 Often, the passwords we create ourselves contain unconscious patterns, such as favorite characters, birthdays, or even car license plate numbers. These predictable patterns can lead to dangerous security breaches. Password Box aims to solve these issues.
 
 All data is stored locally on the user’s device, and the main password is stored in iCloud Keychain for secure access.
 
+[<img src="./docs/Assets/download-app-store.svg">](https://apps.apple.com/jp/app/passwordbox/id6520392403)
+
 ## Requirement
 
 To run this app, you need the following libraries:

docs/CONTRIBUTEING.md

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+# How to Contribute to the PasswordBox App
+## How to Find Tasks
+We use [GitHub Issues](https://github.com/KaitoMuraoka/PasswordBox/issues) for task management. Please search for an issue you would like to contribute to there. Issues labeled with ["good first issue"](https://github.com/KaitoMuraoka/PasswordBox/contribute) are recommended for your first contribution.
+
+You can also submit a [Pull Request](https://github.com/KaitoMuraoka/PasswordBox/pulls) without an existing issue. In that case, please provide details such as the reason, cause, and solution in the Pull Request.
+
+## How to Start Contributing
+If you find a task you want to work on, leave a comment on the issue (e.g., “:raising_hand:”) to avoid overlapping work with others.
+We will respond to your comment as soon as possible, but feel free to start working on the task once you’ve commented!
+
+## How to Discuss and Propose Ideas
+Using GitHub Issues is preferable, but if you have specific ideas for implementation or refactoring, Pull Requests are also welcome.
+
+## App Translation
+TBD
+
+## Web site
+TBD
+
+## App Design
+I am not a designer. If you have better app or icon designs, please feel free to create an issue.
+
+## Languages for Issues, Comments, and Reviews
+
+Please use either English or Japanese for comments.
+
+## Note
+If you have any questions, feel free to ask anything through [GitHub Issues](https://github.com/KaitoMuraoka/PasswordBox/issues)!