docs: add README with project overview, features, installation, usage, and development details

README.md

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+# Evrard Van Espen's Blog
+
+This is a personal blog built with Go, using the go-org library to parse Org-mode files and generate HTML content.
+
+## Features
+
+- Parse Org-mode files from the `posts` directory
+- Generate HTML pages for each post
+- Create an index page with all posts
+- Support for tags and tag pages
+- Syntax highlighting for code blocks
+- Responsive design with SCSS
+- Media handling for images and videos
+
+## Installation
+
+1. Clone the repository:
+   ```sh
+   git clone https://github.com/evanespen/blog.git
+   cd blog
+   ```
+
+2. Install dependencies:
+   ```sh
+   go mod download
+   ```
+
+## Usage
+
+1. Add your posts in Org-mode format to the `posts` directory.
+2. Add the medias of the articles alongside with them
+3. Build the site in dev mode (auto reload):
+   ```sh
+   ./build-dev.sh
+   ```
+   Or with `go run .`
+
+4. The generated site will be in the `build` directory.
+
+## Development
+
+- The main entry point is `main.go`.
+- Templates are located in the `templates` directory.
+- SCSS file is `styles/main.scss`.
+- Utility functions are in `utils.go`.
+- Media handling is in `medias.go`.
+- Org-mode parsing is in `parse.go`.
+- HTML rendering is in `render.go`.
+- SCSS compilation is in `styles.go`.
+- Static file copying is in `static.go`.
+
+## TODO
+- [X] code documentation
+- [ ] resume page
+- [ ] contact page
+- [ ] responsive
+- [ ] RSS
+- [ ] favicon
+- [ ] search
+- [ ] sitemap.xml
+- [ ] robots.txt
+- [ ] better error handling
+
+## License
+
+This project is licensed under the MIT License - see the LICENSE file for details.