docs(manual): Add some docs for users

Users can understand what this project is.

.github/CODE_OF_CONDUCT.md

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+# Contributor Covenant Code of Conduct
+
+## Our Pledge
+
+We as members, contributors, and leaders pledge to make participation in our
+community a harassment-free experience for everyone, regardless of age, body
+size, visible or invisible disability, ethnicity, sex characteristics, gender
+identity and expression, level of experience, education, socio-economic status,
+nationality, personal appearance, race, religion, or sexual identity
+and orientation.
+
+We pledge to act and interact in ways that contribute to an open, welcoming,
+diverse, inclusive, and healthy community.
+
+## Our Standards
+
+Examples of behavior that contributes to a positive environment for our
+community include:
+
+- Demonstrating empathy and kindness toward other people
+- Being respectful of differing opinions, viewpoints, and experiences
+- Giving and gracefully accepting constructive feedback
+- Accepting responsibility and apologizing to those affected by our mistakes,
+  and learning from the experience
+- Focusing on what is best not just for us as individuals, but for the
+  overall community
+
+Examples of unacceptable behavior include:
+
+- The use of sexualized language or imagery, and sexual attention or
+  advances of any kind
+- Trolling, insulting or derogatory comments, and personal or political attacks
+- Public or private harassment
+- Publishing others' private information, such as a physical or email
+  address, without their explicit permission
+- Other conduct which could reasonably be considered inappropriate in a
+  professional setting
+
+## Enforcement Responsibilities
+
+Community leaders are responsible for clarifying and enforcing our standards of
+acceptable behavior and will take appropriate and fair corrective action in
+response to any behavior that they deem inappropriate, threatening, offensive,
+or harmful.
+
+Community leaders have the right and responsibility to remove, edit, or reject
+comments, commits, code, wiki edits, issues, and other contributions that are
+not aligned to this Code of Conduct, and will communicate reasons for moderation
+decisions when appropriate.
+
+## Scope
+
+This Code of Conduct applies within all community spaces, and also applies when
+an individual is officially representing the community in public spaces.
+Examples of representing our community include using an official e-mail address,
+posting via an official social media account, or acting as an appointed
+representative at an online or offline event.
+
+## Enforcement
+
+Instances of abusive, harassing, or otherwise unacceptable behavior may be
+reported to the community leaders responsible for enforcement at
+any ways @5ouma have.
+All complaints will be reviewed and investigated promptly and fairly.
+
+All community leaders are obligated to respect the privacy and security of the
+reporter of any incident.
+
+## Enforcement Guidelines
+
+Community leaders will follow these Community Impact Guidelines in determining
+the consequences for any action they deem in violation of this Code of Conduct:
+
+### 1. Correction
+
+**Community Impact**: Use of inappropriate language or other behavior deemed
+unprofessional or unwelcome in the community.
+
+**Consequence**: A private, written warning from community leaders, providing
+clarity around the nature of the violation and an explanation of why the
+behavior was inappropriate. A public apology may be requested.
+
+### 2. Warning
+
+**Community Impact**: A violation through a single incident or series
+of actions.
+
+**Consequence**: A warning with consequences for continued behavior. No
+interaction with the people involved, including unsolicited interaction with
+those enforcing the Code of Conduct, for a specified period of time. This
+includes avoiding interactions in community spaces as well as external channels
+like social media. Violating these terms may lead to a temporary or
+permanent ban.
+
+### 3. Temporary Ban
+
+**Community Impact**: A serious violation of community standards, including
+sustained inappropriate behavior.
+
+**Consequence**: A temporary ban from any sort of interaction or public
+communication with the community for a specified period of time. No public or
+private interaction with the people involved, including unsolicited interaction
+with those enforcing the Code of Conduct, is allowed during this period.
+Violating these terms may lead to a permanent ban.
+
+### 4. Permanent Ban
+
+**Community Impact**: Demonstrating a pattern of violation of community
+standards, including sustained inappropriate behavior, harassment of an
+individual, or aggression toward or disparagement of classes of individuals.
+
+**Consequence**: A permanent ban from any sort of public interaction within
+the community.
+
+## Attribution
+
+This Code of Conduct is adapted from the [Contributor Covenant][homepage],
+version 2.0, available at
+[https://www.contributor-covenant.org/version/2/0/code_of_conduct.html](https://www.contributor-covenant.org/version/2/0/code_of_conduct.html).
+
+Community Impact Guidelines were inspired by [Mozilla's code of conduct
+enforcement ladder](https://github.com/mozilla/diversity).
+
+[homepage]: https://www.contributor-covenant.org
+
+For answers to common questions about this code of conduct, see the FAQ at
+[https://www.contributor-covenant.org/faq]. Translations are available at
+[https://www.contributor-covenant.org/translations](https://www.contributor-covenant.org/translations).
+
+[https://www.contributor-covenant.org/faq]: https://www.contributor-covenant.org/faq

.github/CONTRIBUTING.md

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+# Contributing Guide<!-- omit in toc -->
+
+> [!NOTE]
+> You must follow the [Code of Conduct](./CODE_OF_CONDUCT.md).
+
+I happily welcome your contributions!
+Before you contribute,
+I would recommend reading this guideline for a better development experience.
+
+<br />
+
+- [💬 Commit Message](#-commit-message)
+- [🎋 Pull Requests Branch](#-pull-requests-branch)
+- [❓ Pull Requests Title](#-pull-requests-title)
+- [🪵 Commit Log](#-commit-log)
+
+<br /><br />
+
+## 💬 Commit Message
+
+I recommend you to follow [Conventional Commits] with this format.
+
+```commit message
+type(scope): Description
+
+Body
+```
+
+[Conventional Commits]: https://www.conventionalcommits.org
+
+<br />
+
+## 🎋 Pull Requests Branch
+
+I use the [`dev`] branch for the temporary merging.
+When it's time to release, I'll merge the [`dev`] branch into the [`main`] branch.
+<br />
+For this reason, please fork the [`dev`] branch and open a PR to it.
+
+[`main`]: https://github.com/5ouma/rproxy/tree/main
+[`dev`]: https://github.com/5ouma/rproxy/tree/dev
+
+```mermaid
+flowchart LR
+  subgraph PR Branches
+    feature1
+    feature2
+    feature3
+  end
+
+  subgraph  Origin Branches
+    dev
+    main
+  end
+
+  feature1 & feature2 & feature3 -- Squash Merge --> dev
+  dev -- Rebase Merge --> main
+```
+
+<br />
+
+## ❓ Pull Requests Title
+
+You don't need to add any prefixes like `feature` or `bug fix`
+to the Pull Requests title.
+I can recognize what kind of PR it is from labels.
+Please give a clear title.
+
+<br />
+
+## 🪵 Commit Log
+
+I do squash merge to the dev branch to keep the commit history clean.
+When merging your Pull Request, I'll add the Conventional Commits type and scope.

.github/README.md

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+<h1 align="center">Reproxy</h1>
+
+<div align="center">
+
+**🚚 Deliver any files in the GitHub repository**
+
+[![GitHub Release](https://img.shields.io/github/v/release/5ouma/reproxy?style=flat-square)](https://github.com/5ouma/reproxy/releases)
+![GitHub code size in bytes](https://img.shields.io/github/languages/code-size/5ouma/reproxy?style=flat-square)
+![GitHub repo size](https://img.shields.io/github/repo-size/5ouma/reproxy?style=flat-square)
+[![GitHub last commit](https://img.shields.io/github/last-commit/5ouma/reproxy?style=flat-square)](https://github.com/5ouma/reproxy/commit/HEAD)
+[![GitHub commit activity](https://img.shields.io/github/commit-activity/m/5ouma/reproxy?style=flat-square)](https://github.com/5ouma/reproxy/commits/main)
+<br />
+[![Test](https://img.shields.io/github/actions/workflow/status/5ouma/reproxy/test.yml?label=test&style=flat-square)](https://github.com/5ouma/reproxy/actions/workflows/test.yml)
+[![pre-commit.ci status](https://results.pre-commit.ci/badge/github/5ouma/reproxy/main.svg?style=flat-square)](https://results.pre-commit.ci/latest/github/5ouma/reproxy/main)
+
+</div>
+
+<br /><br />
+
+## 💡 Concepts
+
+You can host your specific file on the GitHub repository.
+The usage I assume is for one-line scripts.
+(i.e. dotfiles or some install scripts, like `curl https://example.com | sh`)
+
+If you access from browsers, you'll redirected to the GitHub page, not a raw file.
+
+For the development or testing, you can access to the different branches or tags.
+To do this, simply add the ref name to the sub-directory.
+(i.e. `curl https://example.com/ref | sh`)
+
+<br /><br />
+
+## 🔧 Setup
+
+You can host your file on [Deno Deploy](https://deno.com/deploy).
+
+### 💪 Manual Deployment
+
+1. Clone this repository
+
+   ```sh
+   git clone https://github.com/5ouma/reproxy.git
+   ```
+
+2. Copy the [`.env.tmpl`](../.env.tmpl) to `.env` and edit as you prefer
+
+   > [🌍 Environment Variables](#-environment-variables)
+
+3. Install [Deno](https://deno.com) and [deployctl](https://docs.deno.com/deploy/manual/deployctl).
+
+4. Deploy to Deno Deploy
+
+   ```sh
+   deployctl deploy --prod --env-file='.env'
+   ```
+
+<br />
+
+### ⚙️ Automatic Deployment
+
+1. [Fork this repository](https://github.com/5ouma/reproxy/fork)
+
+2. [Create a new project](https://dash.deno.com/new_project) with your forked repository
+
+3. Set the environment variables
+   (_Don't forget!!_)
+
+   > [🌍 Environment Variables](#-environment-variables)
+
+<br /><br />
+
+## 🔨 Development
+
+1. Clone this repository
+
+   ```sh
+   git clone https://github.com/5ouma/reproxy.git
+   ```
+
+2. Copy the [`.env.template`](../.env.template) to `.env` and edit as you prefer
+
+   > [🌍 Environment Variables](#-environment-variables)
+
+3. Install [Deno](https://deno.com)
+
+4. Run the [`server.ts`](../src/server.ts) via these task runners
+
+   ```sh
+   # For production
+   deno task start
+   ```
+
+   ```sh
+   # For development
+   deno task dev
+   ```
+
+<br /><br />
+
+## 🌍 Environment Variables
+
+|        Name        | Required |
+| :----------------: | :------: |
+| `REPOSITORY_OWNER` |   true   |
+| `REPOSITORY_NAME`  |   true   |
+| `REPOSITORY_PATH`  |   true   |
+|  [`GITHUB_TOKEN`]  |  false   |
+
+> [!NOTE]
+> You need to add [`GITHUB_TOKEN`] if you want to:
+>
+> - Access the file in the private repository
+> - Avoid the API usage limit
+
+[`GITHUB_TOKEN`]: https://github.com/settings/tokens/new?scopes=repo
+
+<br /><br />
+
+## 🆘 Help
+
+- [**⚠️ Issues**]: Feature Requests or Bug Reports
+- [**💬 Discussions**]: General Chats or Questions
+- [**🛡️ Security Advisories**]: Security Issues that should not be public
+
+[**⚠️ Issues**]: https://github.com/5ouma/reproxy/issues/new/choose
+[**💬 Discussions**]: https://github.com/5ouma/reproxy/discussions/new/choose
+[**🛡️ Security Advisories**]: https://github.com/5ouma/reproxy/security/advisories/new
+
+<br /><br />
+
+## 🎽 Contributing
+
+I happily welcome your contributions!
+Before you contribute,
+I would recommend reading [CONTRIBUTING.md](./CONTRIBUTING.md)
+for a better development experience.

.github/SECURITY.md

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+# Security Policy
+
+## 🛡️ Reporting a Vulnerability
+
+If you find any issues of security, please report on [Security Advisories](https://github.com/5ouma/reproxy/security/advisories/new).
+
+> [!CAUTION]
+> Please do NOT open Issues.

LICENSE

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+MIT License
+
+Copyright (c) 2024 Souma
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.