docs: Add README & contribution guidelines

CONTRIBUTING.md

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+<p align="center">
+  <picture>
+    <source
+      width="256px"
+      media="(prefers-color-scheme: dark)"
+      srcset="assets/revanced-headline/revanced-headline-vertical-dark.svg"
+    >
+    <img 
+      width="256px"
+      src="assets/revanced-headline/revanced-headline-vertical-light.svg"
+    >
+  </picture>
+  <br>
+  <a href="https://revanced.app/">
+     <picture>
+         <source height="24px" media="(prefers-color-scheme: dark)" srcset="assets/revanced-logo/revanced-logo.svg" />
+         <img height="24px" src="assets/revanced-logo/revanced-logo.svg" />
+     </picture>
+   </a>&nbsp;&nbsp;&nbsp;
+   <a href="https://github.com/ReVanced">
+       <picture>
+           <source height="24px" media="(prefers-color-scheme: dark)" srcset="https://i.ibb.co/dMMmCrW/Git-Hub-Mark.png" />
+           <img height="24px" src="https://i.ibb.co/9wV3HGF/Git-Hub-Mark-Light.png" />
+       </picture>
+   </a>&nbsp;&nbsp;&nbsp;
+   <a href="http://revanced.app/discord">
+       <picture>
+           <source height="24px" media="(prefers-color-scheme: dark)" srcset="https://user-images.githubusercontent.com/13122796/178032563-d4e084b7-244e-4358-af50-26bde6dd4996.png" />
+           <img height="24px" src="https://user-images.githubusercontent.com/13122796/178032563-d4e084b7-244e-4358-af50-26bde6dd4996.png" />
+       </picture>
+   </a>&nbsp;&nbsp;&nbsp;
+   <a href="https://reddit.com/r/revancedapp">
+       <picture>
+           <source height="24px" media="(prefers-color-scheme: dark)" srcset="https://user-images.githubusercontent.com/13122796/178032351-9d9d5619-8ef7-470a-9eec-2744ece54553.png" />
+           <img height="24px" src="https://user-images.githubusercontent.com/13122796/178032351-9d9d5619-8ef7-470a-9eec-2744ece54553.png" />
+       </picture>
+   </a>&nbsp;&nbsp;&nbsp;
+   <a href="https://t.me/app_revanced">
+      <picture>
+         <source height="24px" media="(prefers-color-scheme: dark)" srcset="https://user-images.githubusercontent.com/13122796/178032213-faf25ab8-0bc3-4a94-a730-b524c96df124.png" />
+         <img height="24px" src="https://user-images.githubusercontent.com/13122796/178032213-faf25ab8-0bc3-4a94-a730-b524c96df124.png" />
+      </picture>
+   </a>&nbsp;&nbsp;&nbsp;
+   <a href="https://x.com/revancedapp">
+      <picture>
+         <source media="(prefers-color-scheme: dark)" srcset="https://user-images.githubusercontent.com/93124920/270180600-7c1b38bf-889b-4d68-bd5e-b9d86f91421a.png">
+         <img height="24px" src="https://user-images.githubusercontent.com/93124920/270108715-d80743fa-b330-4809-b1e6-79fbdc60d09c.png" />
+      </picture>
+   </a>&nbsp;&nbsp;&nbsp;
+   <a href="https://www.youtube.com/@ReVanced">
+      <picture>
+         <source height="24px" media="(prefers-color-scheme: dark)" srcset="https://user-images.githubusercontent.com/13122796/178032714-c51c7492-0666-44ac-99c2-f003a695ab50.png" />
+         <img height="24px" src="https://user-images.githubusercontent.com/13122796/178032714-c51c7492-0666-44ac-99c2-f003a695ab50.png" />
+     </picture>
+   </a>
+   <br>
+   <br>
+   Continuing the legacy of Vanced
+</p>
+
+# 👋 Contribution guidelines
+
+This document describes how to contribute to ReVanced API.
+
+## 📖 Resources to help you get started
+
+* [Our backlog](https://github.com/orgs/ReVanced/projects/12) is where we keep track of what we're working on
+* [Issues](https://github.com/ReVanced/revanced-api/issues) are where we keep track of bugs and feature requests
+
+## 🙏 Submitting a feature request
+
+Features can be requested by opening an issue using the
+[Feature request issue template](https://github.com/ReVanced/revanced-api/issues/new?assignees=&labels=Feature+request&projects=&template=feature-request.yml&title=feat%3A+).
+
+> **Note**
+> Requests can be accepted or rejected at the discretion of maintainers of ReVanced API.
+> Good motivation has to be provided for a request to be accepted.
+
+## 🐞 Submitting a bug report
+
+If you encounter a bug while using ReVanced API, open an issue using the
+[Bug report issue template](https://github.com/ReVanced/revanced-api/issues/new?assignees=&labels=Bug+report&projects=&template=bug-report.yml&title=bug%3A+).
+
+## 📝 How to contribute
+
+1. Before contributing, it is recommended to open an issue to discuss your change
+with the maintainers of ReVanced API. This will help you determine whether your change is acceptable
+and whether it is worth your time to implement it
+2. Development happens on the `dev` branch. Fork the repository and create your branch from `dev`
+3. Commit your changes
+4. Submit a pull request to the `dev` branch of the repository and reference issues
+that your pull request closes in the description of your pull request
+5. Our team will review your pull request and provide feedback. Once your pull request is approved,
+it will be merged into the `dev` branch and will be included in the next release of ReVanced API
+
+❤️ Thank you for considering contributing to ReVanced API,
+ReVanced

README.md

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+<p align="center">
+  <picture>
+    <source
+      width="256px"
+      media="(prefers-color-scheme: dark)"
+      srcset="assets/revanced-headline/revanced-headline-vertical-dark.svg"
+    >
+    <img 
+      width="256px"
+      src="assets/revanced-headline/revanced-headline-vertical-light.svg"
+    >
+  </picture>
+  <br>
+  <a href="https://revanced.app/">
+     <picture>
+         <source height="24px" media="(prefers-color-scheme: dark)" srcset="assets/revanced-logo/revanced-logo.svg" />
+         <img height="24px" src="assets/revanced-logo/revanced-logo.svg" />
+     </picture>
+   </a>&nbsp;&nbsp;&nbsp;
+   <a href="https://github.com/ReVanced">
+       <picture>
+           <source height="24px" media="(prefers-color-scheme: dark)" srcset="https://i.ibb.co/dMMmCrW/Git-Hub-Mark.png" />
+           <img height="24px" src="https://i.ibb.co/9wV3HGF/Git-Hub-Mark-Light.png" />
+       </picture>
+   </a>&nbsp;&nbsp;&nbsp;
+   <a href="http://revanced.app/discord">
+       <picture>
+           <source height="24px" media="(prefers-color-scheme: dark)" srcset="https://user-images.githubusercontent.com/13122796/178032563-d4e084b7-244e-4358-af50-26bde6dd4996.png" />
+           <img height="24px" src="https://user-images.githubusercontent.com/13122796/178032563-d4e084b7-244e-4358-af50-26bde6dd4996.png" />
+       </picture>
+   </a>&nbsp;&nbsp;&nbsp;
+   <a href="https://reddit.com/r/revancedapp">
+       <picture>
+           <source height="24px" media="(prefers-color-scheme: dark)" srcset="https://user-images.githubusercontent.com/13122796/178032351-9d9d5619-8ef7-470a-9eec-2744ece54553.png" />
+           <img height="24px" src="https://user-images.githubusercontent.com/13122796/178032351-9d9d5619-8ef7-470a-9eec-2744ece54553.png" />
+       </picture>
+   </a>&nbsp;&nbsp;&nbsp;
+   <a href="https://t.me/app_revanced">
+      <picture>
+         <source height="24px" media="(prefers-color-scheme: dark)" srcset="https://user-images.githubusercontent.com/13122796/178032213-faf25ab8-0bc3-4a94-a730-b524c96df124.png" />
+         <img height="24px" src="https://user-images.githubusercontent.com/13122796/178032213-faf25ab8-0bc3-4a94-a730-b524c96df124.png" />
+      </picture>
+   </a>&nbsp;&nbsp;&nbsp;
+   <a href="https://x.com/revancedapp">
+      <picture>
+         <source media="(prefers-color-scheme: dark)" srcset="https://user-images.githubusercontent.com/93124920/270180600-7c1b38bf-889b-4d68-bd5e-b9d86f91421a.png">
+         <img height="24px" src="https://user-images.githubusercontent.com/93124920/270108715-d80743fa-b330-4809-b1e6-79fbdc60d09c.png" />
+      </picture>
+   </a>&nbsp;&nbsp;&nbsp;
+   <a href="https://www.youtube.com/@ReVanced">
+      <picture>
+         <source height="24px" media="(prefers-color-scheme: dark)" srcset="https://user-images.githubusercontent.com/13122796/178032714-c51c7492-0666-44ac-99c2-f003a695ab50.png" />
+         <img height="24px" src="https://user-images.githubusercontent.com/13122796/178032714-c51c7492-0666-44ac-99c2-f003a695ab50.png" />
+     </picture>
+   </a>
+   <br>
+   <br>
+   Continuing the legacy of Vanced
+</p>
+
+# 🚀 ReVanced API
+
+![GitHub Workflow Status (with event)](https://img.shields.io/github/actions/workflow/status/ReVanced/revanced-api/release.yml)
+![GPLv3 License](https://img.shields.io/badge/License-GPL%20v3-yellow.svg)
+
+API server for ReVanced.
+
+## ❓ About
+
+ReVanced API is a server that is used as the backend for ReVanced.
+ReVanced API powers [ReVanced Manager](https://github.com/ReVanced/revanced-manager) with updates and ReVanced Patches,
+and acts as a data source for [ReVanced Website](https://github.com/ReVanced/revanced-website).
+
+## 💪 Features
+
+Some of the features of ReVanced API include:
+
+- 📢 **Announcements**: Push announcements grouped by channels
+- ℹ️ About: Get more information such as a description, ways to donate and links about the hoster of ReVanced API
+- 🧩 Patches: Get the latest updates of ReVanced Patches directly from ReVanced API
+- 👥 Contributors: List all contributors involved in the project
+
+## 🚀 How to get started
+
+1. Clone the repository
+2. Set up the environment variables in a `.env` file using the `.env.example` file as a template
+3. Configure the `configuration.toml` file using the `configuration.toml.example` file as a template
+4. Run the server using `gradlew run --args=start`
+
+## 📚 Everything else
+
+### 📙 Contributing
+
+Thank you for considering contributing to ReVanced API. You can find the contribution guidelines [here](CONTRIBUTING.md).
+
+### 🛠️ Building
+
+In order to build ReVanced API, follow these steps:
+
+1. Clone the repository
+2. Run `gradlew build` to build the project
+
+## 📜 Licence
+
+ReVanced API is licensed under the GPLv3 licence. Please see the [licence file](LICENSE) for more information.
+[tl;dr](https://www.tldrlegal.com/license/gnu-general-public-license-v3-gpl-3) you may copy, distribute and
+modify ReVanced API as long as you track changes/dates in source files.
+Any modifications to ReVanced API must also be made available under the GPL along with build & install instructions.

assets/revanced-logo/revanced-logo.svg

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