Add readme

README.md

@@ -0,0 +1,68 @@
+<div align="center">
+
+<img width="128" height="128" src="extension/icon.svg">
+
+# YouTube Customizer
+
+Web browser extension for customizing YouTube
+
+</div>
+
+<div align="center">
+    <a href="https://addons.mozilla.org/addon/youtubecustomizer"><img src="https://img.shields.io/amo/users/youtubecustomizer?label=Firefox users&color=FF7139&style=for-the-badge&logo=firefoxbrowser"></a>
+    <a href="https://addons.mozilla.org/addon/youtubecustomizer"><img src="https://img.shields.io/amo/v/youtubecustomizer?&label=Version&color=723F8C&style=for-the-badge"></a>
+    <a href="https://img.shields.io/github/issues/ryze312/youtube-customizer/issues"><img src="https://img.shields.io/github/issues/ryze312/youtube-customizer?&color=crimson&style=for-the-badge"></a>
+    <a href="https://opensource.org/license/gpl-3-0"><img src="https://img.shields.io/github/license/ryze312/youtube-customizer?color=blue&style=for-the-badge"></a>
+</div>
+
+
+![Demo screenshot](img/demo.png)
+
+## Features
+- Toggling various elements of layout (e.g sidebar buttons)
+- Redirecting home page to subscriptions
+- [ff2mpv](https://github.com/woodruffw/ff2mpv) integration
+
+## Usage
+<a href="https://addons.mozilla.org/addon/youtubecustomizer"><img src="img/amo_button.png" alt="Get the addon"></a>
+
+*Chromium-based browsers are not supported*
+
+## Configuration
+The extension provides configuration using settings page that can be accessed through web browser extension page.
+
+![Settings Page](img/settings_page.png)
+
+## Supported languages
+The extension has localization for the following languages:
+- English
+- Spanish
+- French
+- Hungarian
+- Russian
+
+## Building
+YouTube Customizer uses [pnpm](https://github.com/pnpm/pnpm) and [web-ext](https://github.com/mozilla/web-ext) for building and bundling final package, as well as [TypeScript transpiler](https://github.com/microsoft/TypeScript) for building JavaScript sources.
+
+1. Install TypeScript, pnpm and web-ext using system package manager or npm
+```
+npm install -g typescript web-ext pnpm 
+```
+
+2. Install dependencies and run build
+```
+pnpm install
+pnpm build
+```
+
+# Contributing
+All issues and pull requests are welcome! Feel free to open an issue if you've got an idea or a problem. You can open a pull request if you are able to implement it yourself.
+
+---
+<p align="center">
+<sub><strong>
+    Made with ponies and love!
+    <br/>
+    GNU GPL © Ryze 2023 💜
+</strong></sub>
+</p>