docs: extensively update and reorganize README

Expanded README with detailed sections including usage, features, installation, configuration, and contribution guidelines. Enhanced documentation provides clarity on converting XMR to/from fiat, office application integrations, and new project enhancements. This makes the project more accessible for users and contributors.

README.md

@@ -1,25 +1,153 @@
 ![Favicon - moner.ooo](/img/apple-touch-icon-152x152.png)
+
 # Moner.ooo
-Add a new language or an improvement via '[Pull request](https://github.com/nice42q/moner.ooo/pulls)' or report a Bug via '[Issues](https://github.com/nice42q/moner.ooo/issues)'.
 
-The language is selected according to the Web-Browser language set; if the language is not available, English is displayed by default.
+Moner.ooo is a web application for converting Monero (XMR) to various fiat currencies and vice versa. It provides almost real-time exchange rates and supports multiple languages based on the user's browser settings.
 
-###### Display your favorite currency directly
+This is a fork of the original project by [nice42q](https://github.com/nice42q/moner.ooo) with some modifications, including:
-[moner.ooo/?in=usd](https://moner.ooo/?in=usd)
 
-###### Use XMR (Monero) prices data for Office (Excel, Calc)
+- Improved webpack configuration.
-Select field A1 and go to ‘Data’ → ‘Link to external data...’ → input the URL (https://moner.ooo/) and confirm with Enter. Confirm the import options and then select ‘HTML_1’.
+- Support for JS-less operation.
+- Improved translations and translation handling.
+- Automatic exchange rate updates.
+- Automatic update of available currencies.
+- Configuration file for customizing the application.
 
-3600 seconds = 1 hour
+## Table of Contents
 
-(Example with Picture [kuno.anne.media](https://kuno.anne.media/donate/onml/))
+- [Features](#features)
+- [Usage](#usage)
+- [Installation](#installation)
+- [Configuration](#configuration)
+- [Development](#development)
+- [Contributing](#contributing)
+- [Acknowledgements](#acknowledgements)
 
-###### Webserver sponsored by
+## Features
-[![Servers Guru](/img/servers-guru.svg)](https://servers.guru/)
 
-###### Domain (9 Years) sponsored by
+- Conversion between Monero (XMR) and multiple fiat currencies.
-[kuno.anne.media](https://kuno.anne.media/donate/onml/)
+- Multi-language support.
+- User-friendly interface.
+- Fetches currencies and exchange rates from CoinGecko API.
+- Fully functional without JavaScript. Even better with JavaScript enabled.
+- Customizable configuration.
 
-Thanks for the support.
+## Usage
 
-The Website uses Bootstrap.
+### Convert XMR to Fiat
+
+To convert XMR to a fiat currency, simply visit:
+
+```
+https://calc.revuo-xmr.com/?in=USD
+```
+
+Replace `USD` with your preferred currency code. You can also specify the amount of XMR to convert:
+
+```
+https://calc.revuo-xmr.com/?in=USD&xmr=1
+```
+
+The `xmr` parameter specifies the amount of XMR to convert.
+
+### Convert Fiat to XMR
+
+To convert a fiat currency to XMR, visit:
+
+```
+https://calc.revuo-xmr.com/?in=USD&fiat=1&direction=1
+```
+
+The `fiat` parameter specifies the amount of fiat currency to convert. The `direction` parameter is set to `1` to indicate conversion from fiat to XMR.
+
+### Use XMR Prices Data in Office Applications
+
+1. Select field A1.
+2. Go to `Data` → `Link to external data...`.
+3. Input the URL `https://moner.ooo/` and confirm.
+4. Confirm the import options and select `HTML_1`.
+
+For an example, see [kuno.anne.media](https://kuno.anne.media/donate/onml/).
+
+## Installation
+
+### Prerequisites
+
+- PHP
+- Node.js and npm
+- PHP-enabled web server (e.g. Caddy, Nginx, Apache)
+
+### Steps
+
+1. Clone the repository:
+
+    ```sh
+    git clone https://github.com/nice42q/moner.ooo.git
+    cd moner.ooo
+    ```
+
+2. Install JavaScript dependencies:
+
+    ```sh
+    npm install
+    ```
+
+3. Build the project:
+
+    ```sh
+    npm run build
+    ```
+
+4. Point your web server to the repository directory.
+
+## Configuration
+
+Create a `config.php` file in the root directory to customize the application. Example:
+
+```php
+<?php
+return [
+    'servers_guru' => false,
+    'attribution' => 'Powered by Moner.ooo',
+    'preferred_currencies' => ['USD', 'EUR', 'GBP'],
+    'github_url' => 'https://git.private.coffee/kumi/moner.ooo/',
+    'footer_links' => [
+        ['url' => 'https://example.com', 'text' => 'Example Link']
+    ],
+];
+```
+
+### Fetching Exchange Rates
+
+Exchange rates are fetched from the CoinGecko API. The `coingecko.php` file handles the API requests and attempts to update exchange rates every 5 seconds. Due to the rate limits of the CoinGecko API, actual update intervals may vary and are closer to 60 seconds.
+
+## Contributing
+
+We welcome contributions! Here’s how you can help:
+
+1. Fork the repository.
+2. Create a new branch for your feature or bugfix:
+
+    ```sh
+    git checkout -b my-feature-branch
+    ```
+
+3. Make your changes.
+4. Commit your changes:
+
+    ```sh
+    git commit -m "Description of my changes"
+    ```
+
+5. Push to the branch:
+
+    ```sh
+    git push origin my-feature-branch
+    ```
+
+6. Create a pull request.
+
+## Acknowledgements
+
+- [Bootstrap](https://getbootstrap.com/)
+- [CoinGecko API](https://www.coingecko.com/en/api)